src/video/windows/SDL_windowsevents.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 26 Aug 2018 20:37:23 -0700
changeset 12154 2a9b4339468b
parent 12153 de4288fa5b0b
child 12231 e653f009e6c0
child 12349 a67dedb293c8
permissions -rw-r--r--
Update the cursor clipping each frame, in case it was stolen by another application.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_WINDOWS
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#include "SDL_windowsvideo.h"
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#include "SDL_windowsshape.h"
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#include "SDL_system.h"
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#include "SDL_syswm.h"
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#include "SDL_timer.h"
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#include "SDL_vkeys.h"
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#include "SDL_hints.h"
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#include "../../events/SDL_events_c.h"
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#include "../../events/SDL_touch_c.h"
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#include "../../events/scancodes_windows.h"
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#include "SDL_assert.h"
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#include "SDL_hints.h"
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/* Dropfile support */
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#include <shellapi.h>
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/* For GET_X_LPARAM, GET_Y_LPARAM. */
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#include <windowsx.h>
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/* #define WMMSG_DEBUG */
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#ifdef WMMSG_DEBUG
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#include <stdio.h>
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#include "wmmsg.h"
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#endif
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/* For processing mouse WM_*BUTTON* and WM_MOUSEMOVE message-data from GetMessageExtraInfo() */
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#define MOUSEEVENTF_FROMTOUCH 0xFF515700
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/* Masks for processing the windows KEYDOWN and KEYUP messages */
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#define REPEATED_KEYMASK    (1<<30)
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#define EXTENDED_KEYMASK    (1<<24)
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#define VK_ENTER    10          /* Keypad Enter ... no VKEY defined? */
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#ifndef VK_OEM_NEC_EQUAL
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#define VK_OEM_NEC_EQUAL 0x92
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#endif
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/* Make sure XBUTTON stuff is defined that isn't in older Platform SDKs... */
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#ifndef WM_XBUTTONDOWN
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#define WM_XBUTTONDOWN 0x020B
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#endif
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#ifndef WM_XBUTTONUP
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#define WM_XBUTTONUP 0x020C
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#endif
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#ifndef GET_XBUTTON_WPARAM
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#define GET_XBUTTON_WPARAM(w) (HIWORD(w))
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#endif
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#ifndef WM_INPUT
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#define WM_INPUT 0x00ff
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#endif
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#ifndef WM_TOUCH
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#define WM_TOUCH 0x0240
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#endif
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#ifndef WM_MOUSEHWHEEL
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#define WM_MOUSEHWHEEL 0x020E
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#endif
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#ifndef WM_UNICHAR
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#define WM_UNICHAR 0x0109
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#endif
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static SDL_Scancode
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VKeytoScancode(WPARAM vkey)
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{
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    switch (vkey) {
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    case VK_CLEAR: return SDL_SCANCODE_CLEAR;
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    case VK_MODECHANGE: return SDL_SCANCODE_MODE;
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    case VK_SELECT: return SDL_SCANCODE_SELECT;
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    case VK_EXECUTE: return SDL_SCANCODE_EXECUTE;
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    case VK_HELP: return SDL_SCANCODE_HELP;
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    case VK_PAUSE: return SDL_SCANCODE_PAUSE;
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    case VK_NUMLOCK: return SDL_SCANCODE_NUMLOCKCLEAR;
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    case VK_F13: return SDL_SCANCODE_F13;
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    case VK_F14: return SDL_SCANCODE_F14;
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    case VK_F15: return SDL_SCANCODE_F15;
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    case VK_F16: return SDL_SCANCODE_F16;
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    case VK_F17: return SDL_SCANCODE_F17;
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    case VK_F18: return SDL_SCANCODE_F18;
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    case VK_F19: return SDL_SCANCODE_F19;
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    case VK_F20: return SDL_SCANCODE_F20;
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    case VK_F21: return SDL_SCANCODE_F21;
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    case VK_F22: return SDL_SCANCODE_F22;
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    case VK_F23: return SDL_SCANCODE_F23;
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    case VK_F24: return SDL_SCANCODE_F24;
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    case VK_OEM_NEC_EQUAL: return SDL_SCANCODE_KP_EQUALS;
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    case VK_BROWSER_BACK: return SDL_SCANCODE_AC_BACK;
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    case VK_BROWSER_FORWARD: return SDL_SCANCODE_AC_FORWARD;
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    case VK_BROWSER_REFRESH: return SDL_SCANCODE_AC_REFRESH;
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    case VK_BROWSER_STOP: return SDL_SCANCODE_AC_STOP;
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    case VK_BROWSER_SEARCH: return SDL_SCANCODE_AC_SEARCH;
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    case VK_BROWSER_FAVORITES: return SDL_SCANCODE_AC_BOOKMARKS;
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    case VK_BROWSER_HOME: return SDL_SCANCODE_AC_HOME;
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    case VK_VOLUME_MUTE: return SDL_SCANCODE_AUDIOMUTE;
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    case VK_VOLUME_DOWN: return SDL_SCANCODE_VOLUMEDOWN;
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    case VK_VOLUME_UP: return SDL_SCANCODE_VOLUMEUP;
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    case VK_MEDIA_NEXT_TRACK: return SDL_SCANCODE_AUDIONEXT;
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    case VK_MEDIA_PREV_TRACK: return SDL_SCANCODE_AUDIOPREV;
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    case VK_MEDIA_STOP: return SDL_SCANCODE_AUDIOSTOP;
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    case VK_MEDIA_PLAY_PAUSE: return SDL_SCANCODE_AUDIOPLAY;
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    case VK_LAUNCH_MAIL: return SDL_SCANCODE_MAIL;
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    case VK_LAUNCH_MEDIA_SELECT: return SDL_SCANCODE_MEDIASELECT;
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    case VK_OEM_102: return SDL_SCANCODE_NONUSBACKSLASH;
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    case VK_ATTN: return SDL_SCANCODE_SYSREQ;
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    case VK_CRSEL: return SDL_SCANCODE_CRSEL;
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    case VK_EXSEL: return SDL_SCANCODE_EXSEL;
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    case VK_OEM_CLEAR: return SDL_SCANCODE_CLEAR;
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    case VK_LAUNCH_APP1: return SDL_SCANCODE_APP1;
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    case VK_LAUNCH_APP2: return SDL_SCANCODE_APP2;
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    default: return SDL_SCANCODE_UNKNOWN;
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    }
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}
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static SDL_Scancode
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WindowsScanCodeToSDLScanCode(LPARAM lParam, WPARAM wParam)
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{
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    SDL_Scancode code;
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    int nScanCode = (lParam >> 16) & 0xFF;
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    SDL_bool bIsExtended = (lParam & (1 << 24)) != 0;
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    code = VKeytoScancode(wParam);
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    if (code == SDL_SCANCODE_UNKNOWN && nScanCode <= 127) {
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        code = windows_scancode_table[nScanCode];
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        if (bIsExtended) {
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            switch (code) {
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            case SDL_SCANCODE_RETURN:
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                code = SDL_SCANCODE_KP_ENTER;
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                break;
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            case SDL_SCANCODE_LALT:
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                code = SDL_SCANCODE_RALT;
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                break;
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            case SDL_SCANCODE_LCTRL:
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                code = SDL_SCANCODE_RCTRL;
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                break;
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            case SDL_SCANCODE_SLASH:
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                code = SDL_SCANCODE_KP_DIVIDE;
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                break;
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            case SDL_SCANCODE_CAPSLOCK:
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                code = SDL_SCANCODE_KP_PLUS;
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                break;
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            default:
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                break;
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            }
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        } else {
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            switch (code) {
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            case SDL_SCANCODE_HOME:
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                code = SDL_SCANCODE_KP_7;
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                break;
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            case SDL_SCANCODE_UP:
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                code = SDL_SCANCODE_KP_8;
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                break;
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            case SDL_SCANCODE_PAGEUP:
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                code = SDL_SCANCODE_KP_9;
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                break;
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            case SDL_SCANCODE_LEFT:
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                code = SDL_SCANCODE_KP_4;
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                break;
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            case SDL_SCANCODE_RIGHT:
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                code = SDL_SCANCODE_KP_6;
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                break;
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            case SDL_SCANCODE_END:
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                code = SDL_SCANCODE_KP_1;
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                break;
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            case SDL_SCANCODE_DOWN:
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                code = SDL_SCANCODE_KP_2;
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                break;
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            case SDL_SCANCODE_PAGEDOWN:
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                code = SDL_SCANCODE_KP_3;
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                break;
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            case SDL_SCANCODE_INSERT:
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                code = SDL_SCANCODE_KP_0;
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                break;
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            case SDL_SCANCODE_DELETE:
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                code = SDL_SCANCODE_KP_PERIOD;
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                break;
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            case SDL_SCANCODE_PRINTSCREEN:
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                code = SDL_SCANCODE_KP_MULTIPLY;
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                break;
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            default:
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                break;
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            }
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        }
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    }
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    return code;
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}
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static SDL_bool
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WIN_ShouldIgnoreFocusClick()
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{
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    return !SDL_GetHintBoolean(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, SDL_FALSE);
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}
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static void
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WIN_CheckWParamMouseButton(SDL_bool bwParamMousePressed, SDL_bool bSDLMousePressed, SDL_WindowData *data, Uint8 button, SDL_MouseID mouseID)
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{
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    if (data->focus_click_pending & SDL_BUTTON(button)) {
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        /* Ignore the button click for activation */
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        if (!bwParamMousePressed) {
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            data->focus_click_pending &= ~SDL_BUTTON(button);
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            WIN_UpdateClipCursor(data->window);
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        }
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        if (WIN_ShouldIgnoreFocusClick()) {
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            return;
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        }
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    }
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    if (bwParamMousePressed && !bSDLMousePressed) {
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        SDL_SendMouseButton(data->window, mouseID, SDL_PRESSED, button);
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    } else if (!bwParamMousePressed && bSDLMousePressed) {
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        SDL_SendMouseButton(data->window, mouseID, SDL_RELEASED, button);
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    }
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}
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/*
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* Some windows systems fail to send a WM_LBUTTONDOWN sometimes, but each mouse move contains the current button state also
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*  so this funciton reconciles our view of the world with the current buttons reported by windows
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*/
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static void
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WIN_CheckWParamMouseButtons(WPARAM wParam, SDL_WindowData *data, SDL_MouseID mouseID)
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{
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    if (wParam != data->mouse_button_flags) {
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        Uint32 mouseFlags = SDL_GetMouseState(NULL, NULL);
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        WIN_CheckWParamMouseButton((wParam & MK_LBUTTON), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, mouseID);
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        WIN_CheckWParamMouseButton((wParam & MK_MBUTTON), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, mouseID);
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        WIN_CheckWParamMouseButton((wParam & MK_RBUTTON), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, mouseID);
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        WIN_CheckWParamMouseButton((wParam & MK_XBUTTON1), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, mouseID);
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        WIN_CheckWParamMouseButton((wParam & MK_XBUTTON2), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, mouseID);
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        data->mouse_button_flags = wParam;
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    }
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}
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static void
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WIN_CheckRawMouseButtons(ULONG rawButtons, SDL_WindowData *data)
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{
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    if (rawButtons != data->mouse_button_flags) {
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        Uint32 mouseFlags = SDL_GetMouseState(NULL, NULL);
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        if ((rawButtons & RI_MOUSE_BUTTON_1_DOWN))
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            WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_1_DOWN), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
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        if ((rawButtons & RI_MOUSE_BUTTON_1_UP))
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            WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_1_UP), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
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        if ((rawButtons & RI_MOUSE_BUTTON_2_DOWN))
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            WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_2_DOWN), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
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        if ((rawButtons & RI_MOUSE_BUTTON_2_UP))
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            WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_2_UP), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
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        if ((rawButtons & RI_MOUSE_BUTTON_3_DOWN))
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            WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_3_DOWN), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
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        if ((rawButtons & RI_MOUSE_BUTTON_3_UP))
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            WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_3_UP), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
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   281
        if ((rawButtons & RI_MOUSE_BUTTON_4_DOWN))
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            WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_4_DOWN), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
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   283
        if ((rawButtons & RI_MOUSE_BUTTON_4_UP))
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   284
            WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_4_UP), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
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   285
        if ((rawButtons & RI_MOUSE_BUTTON_5_DOWN))
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   286
            WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_5_DOWN), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
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   287
        if ((rawButtons & RI_MOUSE_BUTTON_5_UP))
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   288
            WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_5_UP), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
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        data->mouse_button_flags = rawButtons;
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   290
    }
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   291
}
slouken@6943
   292
philipp@10982
   293
static void
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   294
WIN_CheckAsyncMouseRelease(SDL_WindowData *data)
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   295
{
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   296
    Uint32 mouseFlags;
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   297
    SHORT keyState;
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   298
slouken@8212
   299
    /* mouse buttons may have changed state here, we need to resync them,
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   300
       but we will get a WM_MOUSEMOVE right away which will fix things up if in non raw mode also
slouken@8212
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    */
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   302
    mouseFlags = SDL_GetMouseState(NULL, NULL);
slouken@8212
   303
slouken@8813
   304
    keyState = GetAsyncKeyState(VK_LBUTTON);
slouken@8796
   305
    if (!(keyState & 0x8000)) {
dludwig@9668
   306
        WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
slouken@8796
   307
    }
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   308
    keyState = GetAsyncKeyState(VK_RBUTTON);
slouken@8796
   309
    if (!(keyState & 0x8000)) {
dludwig@9668
   310
        WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
slouken@8796
   311
    }
slouken@8796
   312
    keyState = GetAsyncKeyState(VK_MBUTTON);
slouken@8796
   313
    if (!(keyState & 0x8000)) {
dludwig@9668
   314
        WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
slouken@8796
   315
    }
slouken@8796
   316
    keyState = GetAsyncKeyState(VK_XBUTTON1);
slouken@8796
   317
    if (!(keyState & 0x8000)) {
dludwig@9668
   318
        WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
slouken@8796
   319
    }
slouken@8796
   320
    keyState = GetAsyncKeyState(VK_XBUTTON2);
slouken@8796
   321
    if (!(keyState & 0x8000)) {
dludwig@9668
   322
        WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
slouken@8796
   323
    }
slouken@8212
   324
    data->mouse_button_flags = 0;
slouken@8212
   325
}
slouken@8212
   326
philipp@10982
   327
static BOOL
slouken@7645
   328
WIN_ConvertUTF32toUTF8(UINT32 codepoint, char * text)
slouken@7645
   329
{
slouken@7645
   330
    if (codepoint <= 0x7F) {
slouken@7645
   331
        text[0] = (char) codepoint;
slouken@7645
   332
        text[1] = '\0';
slouken@7645
   333
    } else if (codepoint <= 0x7FF) {
slouken@7645
   334
        text[0] = 0xC0 | (char) ((codepoint >> 6) & 0x1F);
slouken@7645
   335
        text[1] = 0x80 | (char) (codepoint & 0x3F);
slouken@7645
   336
        text[2] = '\0';
slouken@7645
   337
    } else if (codepoint <= 0xFFFF) {
slouken@7645
   338
        text[0] = 0xE0 | (char) ((codepoint >> 12) & 0x0F);
slouken@7645
   339
        text[1] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
slouken@7645
   340
        text[2] = 0x80 | (char) (codepoint & 0x3F);
slouken@7645
   341
        text[3] = '\0';
slouken@7645
   342
    } else if (codepoint <= 0x10FFFF) {
slouken@7645
   343
        text[0] = 0xF0 | (char) ((codepoint >> 18) & 0x0F);
slouken@7645
   344
        text[1] = 0x80 | (char) ((codepoint >> 12) & 0x3F);
slouken@7645
   345
        text[2] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
slouken@7645
   346
        text[3] = 0x80 | (char) (codepoint & 0x3F);
slouken@7645
   347
        text[4] = '\0';
slouken@7645
   348
    } else {
slouken@7645
   349
        return SDL_FALSE;
slouken@7645
   350
    }
slouken@7645
   351
    return SDL_TRUE;
slouken@7645
   352
}
slouken@7645
   353
andrewb@9829
   354
static SDL_bool
andrewb@9829
   355
ShouldGenerateWindowCloseOnAltF4(void)
andrewb@9829
   356
{
slouken@10499
   357
    return !SDL_GetHintBoolean(SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4, SDL_FALSE);
andrewb@9829
   358
}
andrewb@9829
   359
slouken@11959
   360
/* Win10 "Fall Creators Update" introduced the bug that SetCursorPos() (as used by SDL_WarpMouseInWindow())
slouken@11959
   361
   doesn't reliably generate WM_MOUSEMOVE events anymore (see #3931) which breaks relative mouse mode via warping.
slouken@11959
   362
   This is used to implement a workaround.. */
slouken@11959
   363
static SDL_bool isWin10FCUorNewer = SDL_FALSE;
slouken@11959
   364
slouken@1895
   365
LRESULT CALLBACK
slouken@1895
   366
WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
slouken@1895
   367
{
slouken@1895
   368
    SDL_WindowData *data;
slouken@3566
   369
    LRESULT returnCode = -1;
slouken@1895
   370
slouken@1951
   371
    /* Send a SDL_SYSWMEVENT if the application wants them */
slouken@4429
   372
    if (SDL_GetEventState(SDL_SYSWMEVENT) == SDL_ENABLE) {
slouken@1951
   373
        SDL_SysWMmsg wmmsg;
slouken@1951
   374
slouken@1951
   375
        SDL_VERSION(&wmmsg.version);
slouken@4900
   376
        wmmsg.subsystem = SDL_SYSWM_WINDOWS;
slouken@5056
   377
        wmmsg.msg.win.hwnd = hwnd;
slouken@5056
   378
        wmmsg.msg.win.msg = msg;
slouken@5056
   379
        wmmsg.msg.win.wParam = wParam;
slouken@5056
   380
        wmmsg.msg.win.lParam = lParam;
slouken@1951
   381
        SDL_SendSysWMEvent(&wmmsg);
slouken@1951
   382
    }
slouken@1951
   383
slouken@1895
   384
    /* Get the window data for the window */
slouken@1895
   385
    data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
slouken@1895
   386
    if (!data) {
slouken@1895
   387
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
slouken@1895
   388
    }
jimtla@4650
   389
slouken@1895
   390
#ifdef WMMSG_DEBUG
slouken@7941
   391
    {
slouken@7941
   392
        char message[1024];
slouken@7941
   393
        if (msg > MAX_WMMSG) {
slouken@7941
   394
            SDL_snprintf(message, sizeof(message), "Received windows message: %p UNKNOWN (%d) -- 0x%X, 0x%X\n", hwnd, msg, wParam, lParam);
slouken@7941
   395
        } else {
slouken@7941
   396
            SDL_snprintf(message, sizeof(message), "Received windows message: %p %s -- 0x%X, 0x%X\n", hwnd, wmtab[msg], wParam, lParam);
slouken@7941
   397
        }
slouken@7941
   398
        OutputDebugStringA(message);
slouken@7941
   399
    }
slouken@7816
   400
#endif /* WMMSG_DEBUG */
slouken@2710
   401
dewyatt@4752
   402
    if (IME_HandleMessage(hwnd, msg, wParam, &lParam, data->videodata))
dewyatt@4752
   403
        return 0;
slouken@1895
   404
slouken@1895
   405
    switch (msg) {
slouken@1895
   406
slouken@1895
   407
    case WM_SHOWWINDOW:
slouken@1895
   408
        {
slouken@1895
   409
            if (wParam) {
slouken@3685
   410
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
   411
            } else {
slouken@3685
   412
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
   413
            }
slouken@1895
   414
        }
slouken@1895
   415
        break;
slouken@1895
   416
slouken@1895
   417
    case WM_ACTIVATE:
slouken@1895
   418
        {
slouken@8796
   419
            POINT cursorPos;
slouken@1895
   420
            BOOL minimized;
slouken@1895
   421
slouken@11938
   422
            /* Don't mark the window as shown if it's activated before being shown */
slouken@11938
   423
            if (!IsWindowVisible(hwnd)) {
slouken@11938
   424
                break;
slouken@11938
   425
            }
slouken@11938
   426
slouken@1895
   427
            minimized = HIWORD(wParam);
slouken@1895
   428
            if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
slouken@10539
   429
                if (LOWORD(wParam) == WA_CLICKACTIVE) {
slouken@10539
   430
                    if (GetAsyncKeyState(VK_LBUTTON)) {
slouken@10539
   431
                        data->focus_click_pending |= SDL_BUTTON_LMASK;
slouken@10539
   432
                    }
slouken@10539
   433
                    if (GetAsyncKeyState(VK_RBUTTON)) {
slouken@10539
   434
                        data->focus_click_pending |= SDL_BUTTON_RMASK;
slouken@10539
   435
                    }
slouken@10539
   436
                    if (GetAsyncKeyState(VK_MBUTTON)) {
slouken@10539
   437
                        data->focus_click_pending |= SDL_BUTTON_MMASK;
slouken@10539
   438
                    }
slouken@10539
   439
                    if (GetAsyncKeyState(VK_XBUTTON1)) {
slouken@10539
   440
                        data->focus_click_pending |= SDL_BUTTON_X1MASK;
slouken@10539
   441
                    }
slouken@10539
   442
                    if (GetAsyncKeyState(VK_XBUTTON2)) {
slouken@10539
   443
                        data->focus_click_pending |= SDL_BUTTON_X2MASK;
slouken@10539
   444
                    }
slouken@10377
   445
                }
slouken@10377
   446
                
slouken@3685
   447
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@4465
   448
                if (SDL_GetKeyboardFocus() != data->window) {
slouken@4465
   449
                    SDL_SetKeyboardFocus(data->window);
slouken@1895
   450
                }
slouken@11300
   451
slouken@8796
   452
                GetCursorPos(&cursorPos);
slouken@8796
   453
                ScreenToClient(hwnd, &cursorPos);
slouken@8796
   454
                SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
slouken@11300
   455
slouken@8212
   456
                WIN_CheckAsyncMouseRelease(data);
slouken@6350
   457
slouken@4504
   458
                /*
slouken@4504
   459
                 * FIXME: Update keyboard state
slouken@4504
   460
                 */
slouken@4504
   461
                WIN_CheckClipboardUpdate(data->videodata);
icculus@9974
   462
icculus@9974
   463
                SDL_ToggleModState(KMOD_CAPS, (GetKeyState(VK_CAPITAL) & 0x0001) != 0);
icculus@9974
   464
                SDL_ToggleModState(KMOD_NUM, (GetKeyState(VK_NUMLOCK) & 0x0001) != 0);
slouken@1895
   465
            } else {
slouken@12153
   466
                RECT rect;
slouken@12153
   467
dludwig@9990
   468
                data->in_window_deactivation = SDL_TRUE;
dludwig@9990
   469
slouken@4465
   470
                if (SDL_GetKeyboardFocus() == data->window) {
slouken@4465
   471
                    SDL_SetKeyboardFocus(NULL);
slouken@10411
   472
                    WIN_ResetDeadKeys();
slouken@1895
   473
                }
slouken@8050
   474
slouken@12153
   475
                if (GetClipCursor(&rect) && SDL_memcmp(&rect, &data->cursor_clipped_rect, sizeof(rect) == 0)) {
slouken@12153
   476
                    ClipCursor(NULL);
slouken@12153
   477
                    SDL_zero(data->cursor_clipped_rect);
slouken@12153
   478
                }
dludwig@9990
   479
dludwig@9990
   480
                data->in_window_deactivation = SDL_FALSE;
slouken@1895
   481
            }
slouken@1895
   482
        }
slouken@3566
   483
        returnCode = 0;
slouken@3566
   484
        break;
slouken@1895
   485
slouken@7191
   486
    case WM_MOUSEMOVE:
slouken@8071
   487
        {
slouken@8071
   488
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   489
            if (!mouse->relative_mode || mouse->relative_mode_warp) {
dludwig@9668
   490
                SDL_MouseID mouseID = (((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) ? SDL_TOUCH_MOUSEID : 0);
dludwig@9668
   491
                SDL_SendMouseMotion(data->window, mouseID, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
slouken@11959
   492
                if (isWin10FCUorNewer && mouseID != SDL_TOUCH_MOUSEID && mouse->relative_mode_warp) {
slouken@11959
   493
                    /* To work around #3931, Win10 bug introduced in Fall Creators Update, where
slouken@11959
   494
                       SetCursorPos() (SDL_WarpMouseInWindow()) doesn't reliably generate mouse events anymore,
slouken@11959
   495
                       after each windows mouse event generate a fake event for the middle of the window
slouken@11959
   496
                       if relative_mode_warp is used */
slouken@11959
   497
                    int center_x = 0, center_y = 0;
slouken@11959
   498
                    SDL_GetWindowSize(data->window, &center_x, &center_y);
slouken@11959
   499
                    center_x /= 2;
slouken@11959
   500
                    center_y /= 2;
slouken@11959
   501
                    SDL_SendMouseMotion(data->window, mouseID, 0, center_x, center_y);
slouken@11959
   502
                }
slouken@8071
   503
            }
slouken@8071
   504
        }
slouken@7191
   505
        /* don't break here, fall through to check the wParam like the button presses */
slouken@7191
   506
    case WM_LBUTTONUP:
slouken@7191
   507
    case WM_RBUTTONUP:
slouken@7191
   508
    case WM_MBUTTONUP:
slouken@7191
   509
    case WM_XBUTTONUP:
slouken@7191
   510
    case WM_LBUTTONDOWN:
slouken@8713
   511
    case WM_LBUTTONDBLCLK:
slouken@7191
   512
    case WM_RBUTTONDOWN:
slouken@8713
   513
    case WM_RBUTTONDBLCLK:
slouken@7191
   514
    case WM_MBUTTONDOWN:
slouken@8713
   515
    case WM_MBUTTONDBLCLK:
slouken@7191
   516
    case WM_XBUTTONDOWN:
slouken@8713
   517
    case WM_XBUTTONDBLCLK:
slouken@8071
   518
        {
slouken@8071
   519
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   520
            if (!mouse->relative_mode || mouse->relative_mode_warp) {
dludwig@9668
   521
                SDL_MouseID mouseID = (((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) ? SDL_TOUCH_MOUSEID : 0);
dludwig@9668
   522
                WIN_CheckWParamMouseButtons(wParam, data, mouseID);
slouken@8071
   523
            }
slouken@8071
   524
        }
slouken@7191
   525
        break;
slouken@3139
   526
slouken@7191
   527
    case WM_INPUT:
slouken@8071
   528
        {
slouken@8071
   529
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   530
            HRAWINPUT hRawInput = (HRAWINPUT)lParam;
slouken@8071
   531
            RAWINPUT inp;
slouken@8071
   532
            UINT size = sizeof(inp);
icculus@8942
   533
            const SDL_bool isRelative = mouse->relative_mode || mouse->relative_mode_warp;
icculus@8942
   534
            const SDL_bool isCapture = ((data->window->flags & SDL_WINDOW_MOUSE_CAPTURE) != 0);
slouken@6782
   535
icculus@8942
   536
            if (!isRelative || mouse->focus != data->window) {
icculus@8942
   537
                if (!isCapture) {
icculus@8942
   538
                    break;
icculus@8942
   539
                }
slouken@8071
   540
            }
slouken@6782
   541
slouken@8071
   542
            GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
slouken@6350
   543
slouken@8071
   544
            /* Mouse data */
slouken@8071
   545
            if (inp.header.dwType == RIM_TYPEMOUSE) {
icculus@8942
   546
                if (isRelative) {
slouken@8976
   547
                    RAWMOUSE* rawmouse = &inp.data.mouse;
slouken@6350
   548
slouken@8976
   549
                    if ((rawmouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE) {
slouken@8976
   550
                        SDL_SendMouseMotion(data->window, 0, 1, (int)rawmouse->lLastX, (int)rawmouse->lLastY);
icculus@8942
   551
                    } else {
icculus@8942
   552
                        /* synthesize relative moves from the abs position */
icculus@8942
   553
                        static SDL_Point initialMousePoint;
icculus@8942
   554
                        if (initialMousePoint.x == 0 && initialMousePoint.y == 0) {
slouken@8976
   555
                            initialMousePoint.x = rawmouse->lLastX;
slouken@8976
   556
                            initialMousePoint.y = rawmouse->lLastY;
icculus@8942
   557
                        }
icculus@8942
   558
slouken@10864
   559
                        SDL_SendMouseMotion(data->window, 0, 1, (int)(rawmouse->lLastX-initialMousePoint.x), (int)(rawmouse->lLastY-initialMousePoint.y));
icculus@8942
   560
slouken@8976
   561
                        initialMousePoint.x = rawmouse->lLastX;
slouken@8976
   562
                        initialMousePoint.y = rawmouse->lLastY;
slouken@8071
   563
                    }
slouken@8976
   564
                    WIN_CheckRawMouseButtons(rawmouse->usButtonFlags, data);
icculus@8942
   565
                } else if (isCapture) {
icculus@8942
   566
                    /* we check for where Windows thinks the system cursor lives in this case, so we don't really lose mouse accel, etc. */
icculus@8942
   567
                    POINT pt;
slouken@10863
   568
                    RECT hwndRect;
slouken@10864
   569
                    HWND currentHnd;
slouken@10864
   570
icculus@8942
   571
                    GetCursorPos(&pt);
slouken@10864
   572
                    currentHnd = WindowFromPoint(pt);
slouken@10864
   573
                    ScreenToClient(hwnd, &pt);
slouken@10864
   574
                    GetClientRect(hwnd, &hwndRect);
slouken@10863
   575
slouken@10863
   576
                    /* if in the window, WM_MOUSEMOVE, etc, will cover it. */
slouken@10864
   577
                    if(currentHnd != hwnd || pt.x < 0 || pt.y < 0 || pt.x > hwndRect.right || pt.y > hwndRect.right) {
slouken@10864
   578
                        SDL_SendMouseMotion(data->window, 0, 0, (int)pt.x, (int)pt.y);
icculus@8949
   579
                        SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_LBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_LEFT);
icculus@8949
   580
                        SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_RBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_RIGHT);
icculus@8949
   581
                        SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_MBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_MIDDLE);
icculus@8949
   582
                        SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_XBUTTON1) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_X1);
icculus@8949
   583
                        SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_XBUTTON2) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_X2);
icculus@8942
   584
                    }
icculus@8942
   585
                } else {
icculus@8942
   586
                    SDL_assert(0 && "Shouldn't happen");
slouken@7191
   587
                }
slouken@7191
   588
            }
slouken@7191
   589
        }
slouken@7191
   590
        break;
slouken@6350
   591
slouken@5049
   592
    case WM_MOUSEWHEEL:
slouken@7911
   593
    case WM_MOUSEHWHEEL:
slouken@7911
   594
        {
slouken@11300
   595
            short amount = GET_WHEEL_DELTA_WPARAM(wParam);
slouken@11300
   596
            float fAmount = (float) amount / WHEEL_DELTA;
slouken@11300
   597
            if (msg == WM_MOUSEWHEEL)
slouken@11300
   598
                SDL_SendMouseWheel(data->window, 0, 0.0f, fAmount, SDL_MOUSEWHEEL_NORMAL);
slouken@11300
   599
            else
slouken@11300
   600
                SDL_SendMouseWheel(data->window, 0, fAmount, 0.0f, SDL_MOUSEWHEEL_NORMAL);
slouken@7911
   601
        }
slouken@8071
   602
        break;
slouken@7911
   603
slouken@5086
   604
#ifdef WM_MOUSELEAVE
slouken@1895
   605
    case WM_MOUSELEAVE:
icculus@8942
   606
        if (SDL_GetMouseFocus() == data->window && !SDL_GetMouse()->relative_mode && !(data->window->flags & SDL_WINDOW_MOUSE_CAPTURE)) {
slouken@8035
   607
            if (!IsIconic(hwnd)) {
slouken@8035
   608
                POINT cursorPos;
slouken@8035
   609
                GetCursorPos(&cursorPos);
slouken@8035
   610
                ScreenToClient(hwnd, &cursorPos);
slouken@8035
   611
                SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
slouken@8035
   612
            }
slouken@7191
   613
            SDL_SetMouseFocus(NULL);
slouken@1895
   614
        }
slouken@3566
   615
        returnCode = 0;
slouken@3566
   616
        break;
slouken@5086
   617
#endif /* WM_MOUSELEAVE */
slouken@1895
   618
slouken@7645
   619
    case WM_KEYDOWN:
slouken@7646
   620
    case WM_SYSKEYDOWN:
slouken@7645
   621
        {
slouken@8813
   622
            SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
icculus@9641
   623
            const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
icculus@9641
   624
icculus@9641
   625
            /* Detect relevant keyboard shortcuts */
icculus@9641
   626
            if (keyboardState[SDL_SCANCODE_LALT] == SDL_PRESSED || keyboardState[SDL_SCANCODE_RALT] == SDL_PRESSED) {
icculus@9641
   627
                /* ALT+F4: Close window */
andrewb@9829
   628
                if (code == SDL_SCANCODE_F4 && ShouldGenerateWindowCloseOnAltF4()) {
icculus@9641
   629
                    SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
icculus@9641
   630
                }
icculus@9641
   631
            }
icculus@9641
   632
slouken@8813
   633
            if (code != SDL_SCANCODE_UNKNOWN) {
slouken@8813
   634
                SDL_SendKeyboardKey(SDL_PRESSED, code);
slouken@7646
   635
            }
slouken@7646
   636
        }
slouken@11300
   637
slouken@3566
   638
        returnCode = 0;
slouken@3566
   639
        break;
slouken@1895
   640
slouken@1895
   641
    case WM_SYSKEYUP:
slouken@1895
   642
    case WM_KEYUP:
slouken@1895
   643
        {
slouken@8813
   644
            SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
gabomdq@7975
   645
            const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
gabomdq@7975
   646
slouken@8813
   647
            if (code != SDL_SCANCODE_UNKNOWN) {
slouken@6938
   648
                if (code == SDL_SCANCODE_PRINTSCREEN &&
gabomdq@7975
   649
                    keyboardState[code] == SDL_RELEASED) {
slouken@6938
   650
                    SDL_SendKeyboardKey(SDL_PRESSED, code);
slouken@6938
   651
                }
slouken@6938
   652
                SDL_SendKeyboardKey(SDL_RELEASED, code);
slouken@2308
   653
            }
slouken@1895
   654
        }
slouken@3566
   655
        returnCode = 0;
slouken@3566
   656
        break;
slouken@1895
   657
slouken@8143
   658
    case WM_UNICHAR:
slouken@12153
   659
        if (wParam == UNICODE_NOCHAR) {
slouken@9889
   660
            returnCode = 1;
slouken@9889
   661
            break;
slouken@9889
   662
        }
slouken@9889
   663
        /* otherwise fall through to below */
slouken@9889
   664
    case WM_CHAR:
slouken@9889
   665
        {
slouken@9889
   666
            char text[5];
slouken@12153
   667
            if (WIN_ConvertUTF32toUTF8((UINT32)wParam, text)) {
slouken@12153
   668
                SDL_SendKeyboardText(text);
slouken@9889
   669
            }
slouken@9889
   670
        }
slouken@9889
   671
        returnCode = 0;
slouken@8143
   672
        break;
slouken@8143
   673
slouken@5086
   674
#ifdef WM_INPUTLANGCHANGE
slouken@2311
   675
    case WM_INPUTLANGCHANGE:
slouken@2311
   676
        {
slouken@4465
   677
            WIN_UpdateKeymap();
slouken@9898
   678
            SDL_SendKeymapChangedEvent();
slouken@2311
   679
        }
slouken@3566
   680
        returnCode = 1;
slouken@3566
   681
        break;
slouken@5086
   682
#endif /* WM_INPUTLANGCHANGE */
slouken@2311
   683
slouken@8253
   684
    case WM_NCLBUTTONDOWN:
slouken@8253
   685
        {
slouken@8253
   686
            data->in_title_click = SDL_TRUE;
slouken@8253
   687
        }
slouken@8253
   688
        break;
slouken@8253
   689
slouken@8916
   690
    case WM_CAPTURECHANGED:
slouken@8253
   691
        {
slouken@8253
   692
            data->in_title_click = SDL_FALSE;
slouken@8253
   693
slouken@8916
   694
            /* The mouse may have been released during a modal loop */
slouken@8212
   695
            WIN_CheckAsyncMouseRelease(data);
slouken@8036
   696
        }
slouken@8036
   697
        break;
slouken@8036
   698
slouken@5086
   699
#ifdef WM_GETMINMAXINFO
slouken@1895
   700
    case WM_GETMINMAXINFO:
slouken@1895
   701
        {
slouken@1895
   702
            MINMAXINFO *info;
slouken@1895
   703
            RECT size;
slouken@1895
   704
            int x, y;
slouken@1895
   705
            int w, h;
stopiccot@6682
   706
            int min_w, min_h;
slouken@6788
   707
            int max_w, max_h;
slouken@7191
   708
            BOOL constrain_max_size;
slouken@1895
   709
stopiccot@6682
   710
            if (SDL_IsShapedWindow(data->window))
eligottlieb@4815
   711
                Win32_ResizeWindowShape(data->window);
slouken@1895
   712
slouken@7941
   713
            /* If this is an expected size change, allow it */
slouken@7941
   714
            if (data->expected_resize) {
slouken@7941
   715
                break;
slouken@7941
   716
            }
slouken@7941
   717
slouken@1895
   718
            /* Get the current position of our window */
slouken@1895
   719
            GetWindowRect(hwnd, &size);
slouken@1895
   720
            x = size.left;
slouken@1895
   721
            y = size.top;
slouken@1895
   722
slouken@1895
   723
            /* Calculate current size of our window */
slouken@3685
   724
            SDL_GetWindowSize(data->window, &w, &h);
stopiccot@6682
   725
            SDL_GetWindowMinimumSize(data->window, &min_w, &min_h);
slouken@6788
   726
            SDL_GetWindowMaximumSize(data->window, &max_w, &max_h);
stopiccot@6682
   727
slouken@7191
   728
            /* Store in min_w and min_h difference between current size and minimal
stopiccot@6682
   729
               size so we don't need to call AdjustWindowRectEx twice */
stopiccot@6682
   730
            min_w -= w;
stopiccot@6682
   731
            min_h -= h;
slouken@6837
   732
            if (max_w && max_h) {
slouken@6837
   733
                max_w -= w;
slouken@6837
   734
                max_h -= h;
slouken@6862
   735
                constrain_max_size = TRUE;
slouken@6862
   736
            } else {
slouken@6862
   737
                constrain_max_size = FALSE;
slouken@6837
   738
            }
stopiccot@6682
   739
slouken@11857
   740
            if (!(SDL_GetWindowFlags(data->window) & SDL_WINDOW_BORDERLESS)) {
slouken@11857
   741
                LONG style = GetWindowLong(hwnd, GWL_STYLE);
slouken@11857
   742
                /* DJM - according to the docs for GetMenu(), the
slouken@11857
   743
                   return value is undefined if hwnd is a child window.
slouken@11857
   744
                   Apparently it's too difficult for MS to check
slouken@11857
   745
                   inside their function, so I have to do it here.
slouken@11857
   746
                 */
slouken@11857
   747
                BOOL menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@11857
   748
                size.top = 0;
slouken@11857
   749
                size.left = 0;
slouken@11857
   750
                size.bottom = h;
slouken@11857
   751
                size.right = w;
slouken@1895
   752
slouken@11857
   753
                AdjustWindowRectEx(&size, style, menu, 0);
slouken@11857
   754
                w = size.right - size.left;
slouken@11857
   755
                h = size.bottom - size.top;
slouken@11857
   756
            }
slouken@1895
   757
slouken@1895
   758
            /* Fix our size to the current size */
slouken@1895
   759
            info = (MINMAXINFO *) lParam;
stopiccot@6682
   760
            if (SDL_GetWindowFlags(data->window) & SDL_WINDOW_RESIZABLE) {
stopiccot@6682
   761
                info->ptMinTrackSize.x = w + min_w;
stopiccot@6682
   762
                info->ptMinTrackSize.y = h + min_h;
slouken@6862
   763
                if (constrain_max_size) {
slouken@6862
   764
                    info->ptMaxTrackSize.x = w + max_w;
slouken@6862
   765
                    info->ptMaxTrackSize.y = h + max_h;
slouken@6862
   766
                }
stopiccot@6682
   767
            } else {
stopiccot@6682
   768
                info->ptMaxSize.x = w;
stopiccot@6682
   769
                info->ptMaxSize.y = h;
stopiccot@6682
   770
                info->ptMaxPosition.x = x;
stopiccot@6682
   771
                info->ptMaxPosition.y = y;
stopiccot@6682
   772
                info->ptMinTrackSize.x = w;
stopiccot@6682
   773
                info->ptMinTrackSize.y = h;
stopiccot@6682
   774
                info->ptMaxTrackSize.x = w;
stopiccot@6682
   775
                info->ptMaxTrackSize.y = h;
stopiccot@6682
   776
            }
slouken@1895
   777
        }
slouken@3566
   778
        returnCode = 0;
slouken@3566
   779
        break;
slouken@5086
   780
#endif /* WM_GETMINMAXINFO */
slouken@1895
   781
icculus@10387
   782
    case WM_WINDOWPOSCHANGING:
icculus@10387
   783
icculus@10387
   784
        if (data->expected_resize) {
icculus@10387
   785
            returnCode = 0;
icculus@10387
   786
        }
icculus@10387
   787
        break;
icculus@10387
   788
slouken@1895
   789
    case WM_WINDOWPOSCHANGED:
slouken@1895
   790
        {
slouken@1895
   791
            RECT rect;
slouken@1895
   792
            int x, y;
slouken@1895
   793
            int w, h;
slouken@11300
   794
slouken@9888
   795
            if (data->initializing || data->in_border_change) {
slouken@8817
   796
                break;
slouken@8817
   797
            }
slouken@1895
   798
slouken@8036
   799
            if (!GetClientRect(hwnd, &rect) || IsRectEmpty(&rect)) {
slouken@3256
   800
                break;
slouken@3256
   801
            }
slouken@1895
   802
            ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   803
            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   804
slouken@8036
   805
            WIN_UpdateClipCursor(data->window);
slouken@1895
   806
slouken@1895
   807
            x = rect.left;
slouken@1895
   808
            y = rect.top;
slouken@3685
   809
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
   810
slouken@1895
   811
            w = rect.right - rect.left;
slouken@1895
   812
            h = rect.bottom - rect.top;
slouken@3685
   813
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESIZED, w,
slouken@1895
   814
                                h);
flibitijibibo@10417
   815
flibitijibibo@10417
   816
            /* Forces a WM_PAINT event */
flibitijibibo@10417
   817
            InvalidateRect(hwnd, NULL, FALSE);
slouken@1895
   818
        }
slouken@1895
   819
        break;
slouken@1895
   820
slouken@7941
   821
    case WM_SIZE:
slouken@7941
   822
        {
slouken@8813
   823
            switch (wParam) {
slouken@7941
   824
            case SIZE_MAXIMIZED:
slouken@7941
   825
                SDL_SendWindowEvent(data->window,
slouken@11007
   826
                    SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@11007
   827
                SDL_SendWindowEvent(data->window,
slouken@7941
   828
                    SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@7941
   829
                break;
slouken@7941
   830
            case SIZE_MINIMIZED:
slouken@7941
   831
                SDL_SendWindowEvent(data->window,
slouken@7941
   832
                    SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@7941
   833
                break;
slouken@7941
   834
            default:
slouken@7941
   835
                SDL_SendWindowEvent(data->window,
slouken@7941
   836
                    SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@7941
   837
                break;
slouken@7941
   838
            }
slouken@7941
   839
        }
slouken@7941
   840
        break;
slouken@7941
   841
slouken@1895
   842
    case WM_SETCURSOR:
slouken@1895
   843
        {
slouken@3076
   844
            Uint16 hittest;
slouken@1895
   845
slouken@3076
   846
            hittest = LOWORD(lParam);
slouken@3076
   847
            if (hittest == HTCLIENT) {
slouken@5421
   848
                SetCursor(SDL_cursor);
slouken@3566
   849
                returnCode = TRUE;
slouken@8813
   850
            } else if (!g_WindowFrameUsableWhileCursorHidden && !SDL_cursor) {
slouken@8813
   851
                SetCursor(NULL);
slouken@8813
   852
                returnCode = TRUE;
slouken@3076
   853
            }
slouken@1895
   854
        }
slouken@1895
   855
        break;
slouken@1895
   856
slouken@1895
   857
        /* We were occluded, refresh our display */
slouken@1895
   858
    case WM_PAINT:
slouken@1895
   859
        {
slouken@1895
   860
            RECT rect;
slouken@1895
   861
            if (GetUpdateRect(hwnd, &rect, FALSE)) {
slouken@7295
   862
                ValidateRect(hwnd, NULL);
slouken@3685
   863
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED,
slouken@1895
   864
                                    0, 0);
slouken@1895
   865
            }
slouken@1895
   866
        }
slouken@3566
   867
        returnCode = 0;
slouken@3566
   868
        break;
slouken@3095
   869
slouken@1895
   870
        /* We'll do our own drawing, prevent flicker */
slouken@1895
   871
    case WM_ERASEBKGND:
slouken@1895
   872
        {
slouken@1895
   873
        }
slouken@1895
   874
        return (1);
slouken@1895
   875
slouken@1895
   876
    case WM_SYSCOMMAND:
slouken@1895
   877
        {
slouken@9889
   878
            if ((wParam & 0xFFF0) == SC_KEYMENU) {
slouken@9889
   879
                return (0);
slouken@9889
   880
            }
icculus@9624
   881
icculus@9624
   882
#if defined(SC_SCREENSAVE) || defined(SC_MONITORPOWER)
slouken@1895
   883
            /* Don't start the screensaver or blank the monitor in fullscreen apps */
slouken@1895
   884
            if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
slouken@1895
   885
                (wParam & 0xFFF0) == SC_MONITORPOWER) {
slouken@3032
   886
                if (SDL_GetVideoDevice()->suspend_screensaver) {
slouken@1895
   887
                    return (0);
slouken@1895
   888
                }
slouken@1895
   889
            }
icculus@9624
   890
#endif /* System has screensaver support */
slouken@1895
   891
        }
slouken@1895
   892
        break;
slouken@1895
   893
slouken@1895
   894
    case WM_CLOSE:
slouken@1895
   895
        {
slouken@3685
   896
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@1895
   897
        }
slouken@3566
   898
        returnCode = 0;
slouken@3566
   899
        break;
slouken@4919
   900
slouken@7191
   901
    case WM_TOUCH:
slouken@11215
   902
        if (data->videodata->GetTouchInputInfo && data->videodata->CloseTouchInputHandle) {
slouken@7191
   903
            UINT i, num_inputs = LOWORD(wParam);
slouken@7191
   904
            PTOUCHINPUT inputs = SDL_stack_alloc(TOUCHINPUT, num_inputs);
slouken@7191
   905
            if (data->videodata->GetTouchInputInfo((HTOUCHINPUT)lParam, num_inputs, inputs, sizeof(TOUCHINPUT))) {
slouken@7191
   906
                RECT rect;
slouken@7191
   907
                float x, y;
slouken@4919
   908
slouken@7191
   909
                if (!GetClientRect(hwnd, &rect) ||
slouken@7191
   910
                    (rect.right == rect.left && rect.bottom == rect.top)) {
philipp@7631
   911
                    if (inputs) {
philipp@7631
   912
                        SDL_stack_free(inputs);
philipp@7631
   913
                    }
slouken@7191
   914
                    break;
slouken@7191
   915
                }
slouken@7191
   916
                ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@7191
   917
                ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@7191
   918
                rect.top *= 100;
slouken@7191
   919
                rect.left *= 100;
slouken@7191
   920
                rect.bottom *= 100;
slouken@7191
   921
                rect.right *= 100;
slouken@4932
   922
slouken@7191
   923
                for (i = 0; i < num_inputs; ++i) {
slouken@7191
   924
                    PTOUCHINPUT input = &inputs[i];
slouken@4919
   925
icculus@7543
   926
                    const SDL_TouchID touchId = (SDL_TouchID)((size_t)input->hSource);
slouken@9679
   927
                    if (SDL_AddTouch(touchId, "") < 0) {
slouken@9679
   928
                        continue;
slouken@7191
   929
                    }
slouken@4932
   930
slouken@7191
   931
                    /* Get the normalized coordinates for the window */
slouken@7191
   932
                    x = (float)(input->x - rect.left)/(rect.right - rect.left);
slouken@7191
   933
                    y = (float)(input->y - rect.top)/(rect.bottom - rect.top);
slouken@4932
   934
slouken@7191
   935
                    if (input->dwFlags & TOUCHEVENTF_DOWN) {
slouken@7191
   936
                        SDL_SendTouch(touchId, input->dwID, SDL_TRUE, x, y, 1.0f);
slouken@7191
   937
                    }
slouken@7191
   938
                    if (input->dwFlags & TOUCHEVENTF_MOVE) {
slouken@7191
   939
                        SDL_SendTouchMotion(touchId, input->dwID, x, y, 1.0f);
slouken@7191
   940
                    }
slouken@7191
   941
                    if (input->dwFlags & TOUCHEVENTF_UP) {
slouken@7191
   942
                        SDL_SendTouch(touchId, input->dwID, SDL_FALSE, x, y, 1.0f);
slouken@7191
   943
                    }
slouken@7191
   944
                }
slouken@7191
   945
            }
slouken@7191
   946
            SDL_stack_free(inputs);
slouken@4932
   947
slouken@7191
   948
            data->videodata->CloseTouchInputHandle((HTOUCHINPUT)lParam);
slouken@7191
   949
            return 0;
slouken@7191
   950
        }
slouken@7191
   951
        break;
slouken@6523
   952
slouken@6523
   953
    case WM_DROPFILES:
slouken@6523
   954
        {
slouken@6523
   955
            UINT i;
slouken@6523
   956
            HDROP drop = (HDROP) wParam;
slouken@6523
   957
            UINT count = DragQueryFile(drop, 0xFFFFFFFF, NULL, 0);
slouken@6523
   958
            for (i = 0; i < count; ++i) {
slouken@6523
   959
                UINT size = DragQueryFile(drop, i, NULL, 0) + 1;
slouken@6523
   960
                LPTSTR buffer = SDL_stack_alloc(TCHAR, size);
slouken@6523
   961
                if (buffer) {
slouken@6523
   962
                    if (DragQueryFile(drop, i, buffer, size)) {
slouken@6523
   963
                        char *file = WIN_StringToUTF8(buffer);
icculus@10022
   964
                        SDL_SendDropFile(data->window, file);
slouken@6523
   965
                        SDL_free(file);
slouken@6523
   966
                    }
slouken@6523
   967
                    SDL_stack_free(buffer);
slouken@6523
   968
                }
slouken@6523
   969
            }
icculus@10022
   970
            SDL_SendDropComplete(data->window);
slouken@6523
   971
            DragFinish(drop);
slouken@6523
   972
            return 0;
slouken@6523
   973
        }
slouken@6523
   974
        break;
icculus@8938
   975
slouken@11528
   976
    case WM_NCCALCSIZE:
slouken@11528
   977
        {
slouken@11874
   978
            Uint32 window_flags = SDL_GetWindowFlags(data->window);
slouken@11874
   979
            if (wParam == TRUE && (window_flags & SDL_WINDOW_BORDERLESS) && !(window_flags & SDL_WINDOW_FULLSCREEN)) {
slouken@11716
   980
                /* When borderless, need to tell windows that the size of the non-client area is 0 */
slouken@11874
   981
                if (!(window_flags & SDL_WINDOW_RESIZABLE)) {
slouken@11716
   982
                    int w, h;
slouken@11716
   983
                    NCCALCSIZE_PARAMS *params = (NCCALCSIZE_PARAMS *)lParam;
slouken@11874
   984
                    w = data->window->windowed.w;
slouken@11874
   985
                    h = data->window->windowed.h;
slouken@11716
   986
                    params->rgrc[0].right = params->rgrc[0].left + w;
slouken@11716
   987
                    params->rgrc[0].bottom = params->rgrc[0].top + h;
slouken@11716
   988
                }
slouken@11528
   989
                return 0;
slouken@11716
   990
            }
slouken@11528
   991
        }
slouken@11528
   992
        break;
slouken@11528
   993
icculus@8938
   994
    case WM_NCHITTEST:
icculus@8938
   995
        {
icculus@8938
   996
            SDL_Window *window = data->window;
icculus@8938
   997
            if (window->hit_test) {
slouken@11547
   998
                POINT winpoint = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
slouken@8976
   999
                if (ScreenToClient(hwnd, &winpoint)) {
icculus@8941
  1000
                    const SDL_Point point = { (int) winpoint.x, (int) winpoint.y };
icculus@8941
  1001
                    const SDL_HitTestResult rc = window->hit_test(window, &point, window->hit_test_data);
icculus@8948
  1002
                    switch (rc) {
icculus@10028
  1003
                        #define POST_HIT_TEST(ret) { SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIT_TEST, 0, 0); return ret; }
icculus@10028
  1004
                        case SDL_HITTEST_DRAGGABLE: POST_HIT_TEST(HTCAPTION);
icculus@10028
  1005
                        case SDL_HITTEST_RESIZE_TOPLEFT: POST_HIT_TEST(HTTOPLEFT);
icculus@10028
  1006
                        case SDL_HITTEST_RESIZE_TOP: POST_HIT_TEST(HTTOP);
icculus@10028
  1007
                        case SDL_HITTEST_RESIZE_TOPRIGHT: POST_HIT_TEST(HTTOPRIGHT);
icculus@10028
  1008
                        case SDL_HITTEST_RESIZE_RIGHT: POST_HIT_TEST(HTRIGHT);
icculus@10028
  1009
                        case SDL_HITTEST_RESIZE_BOTTOMRIGHT: POST_HIT_TEST(HTBOTTOMRIGHT);
icculus@10028
  1010
                        case SDL_HITTEST_RESIZE_BOTTOM: POST_HIT_TEST(HTBOTTOM);
icculus@10028
  1011
                        case SDL_HITTEST_RESIZE_BOTTOMLEFT: POST_HIT_TEST(HTBOTTOMLEFT);
icculus@10028
  1012
                        case SDL_HITTEST_RESIZE_LEFT: POST_HIT_TEST(HTLEFT);
icculus@10028
  1013
                        #undef POST_HIT_TEST
slouken@8976
  1014
                        case SDL_HITTEST_NORMAL: return HTCLIENT;
icculus@8941
  1015
                    }
icculus@8938
  1016
                }
icculus@8948
  1017
                /* If we didn't return, this will call DefWindowProc below. */
icculus@8938
  1018
            }
icculus@8938
  1019
        }
icculus@8938
  1020
        break;
slouken@6523
  1021
    }
slouken@3566
  1022
slouken@3566
  1023
    /* If there's a window proc, assume it's going to handle messages */
slouken@3566
  1024
    if (data->wndproc) {
slouken@3566
  1025
        return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
slouken@3566
  1026
    } else if (returnCode >= 0) {
slouken@3566
  1027
        return returnCode;
slouken@3566
  1028
    } else {
slouken@3566
  1029
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
slouken@3566
  1030
    }
slouken@1895
  1031
}
slouken@1895
  1032
slouken@12154
  1033
static void WIN_UpdateClipCursorForWindows()
slouken@12154
  1034
{
slouken@12154
  1035
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@12154
  1036
    SDL_Window *window;
slouken@12154
  1037
slouken@12154
  1038
    if (_this) {
slouken@12154
  1039
        for (window = _this->windows; window; window = window->next) {
slouken@12154
  1040
            if (window->driverdata) {
slouken@12154
  1041
                WIN_UpdateClipCursor(window);
slouken@12154
  1042
            }
slouken@12154
  1043
        }
slouken@12154
  1044
    }
slouken@12154
  1045
}
slouken@12154
  1046
slouken@9597
  1047
/* A message hook called before TranslateMessage() */
slouken@9597
  1048
static SDL_WindowsMessageHook g_WindowsMessageHook = NULL;
slouken@9599
  1049
static void *g_WindowsMessageHookData = NULL;
slouken@9597
  1050
slouken@9599
  1051
void SDL_SetWindowsMessageHook(SDL_WindowsMessageHook callback, void *userdata)
slouken@9597
  1052
{
slouken@9597
  1053
    g_WindowsMessageHook = callback;
slouken@9599
  1054
    g_WindowsMessageHookData = userdata;
slouken@9597
  1055
}
slouken@9597
  1056
slouken@1895
  1057
void
slouken@1895
  1058
WIN_PumpEvents(_THIS)
slouken@1895
  1059
{
icculus@7561
  1060
    const Uint8 *keystate;
slouken@1895
  1061
    MSG msg;
slouken@8218
  1062
    DWORD start_ticks = GetTickCount();
slouken@8218
  1063
slouken@8814
  1064
    if (g_WindowsEnableMessageLoop) {
slouken@8814
  1065
        while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
slouken@9597
  1066
            if (g_WindowsMessageHook) {
slouken@9599
  1067
                g_WindowsMessageHook(g_WindowsMessageHookData, msg.hwnd, msg.message, msg.wParam, msg.lParam);
slouken@9597
  1068
            }
slouken@9597
  1069
slouken@8814
  1070
            /* Always translate the message in case it's a non-SDL window (e.g. with Qt integration) */
slouken@8814
  1071
            TranslateMessage(&msg);
slouken@8814
  1072
            DispatchMessage(&msg);
slouken@8218
  1073
slouken@8814
  1074
            /* Make sure we don't busy loop here forever if there are lots of events coming in */
slouken@8814
  1075
            if (SDL_TICKS_PASSED(msg.time, start_ticks)) {
slouken@8814
  1076
                break;
slouken@8814
  1077
            }
slouken@8218
  1078
        }
slouken@1895
  1079
    }
icculus@7561
  1080
icculus@7561
  1081
    /* Windows loses a shift KEYUP event when you have both pressed at once and let go of one.
icculus@7561
  1082
       You won't get a KEYUP until both are released, and that keyup will only be for the second
icculus@7561
  1083
       key you released. Take heroic measures and check the keystate as of the last handled event,
icculus@7561
  1084
       and if we think a key is pressed when Windows doesn't, unstick it in SDL's state. */
icculus@7561
  1085
    keystate = SDL_GetKeyboardState(NULL);
icculus@7561
  1086
    if ((keystate[SDL_SCANCODE_LSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
icculus@7561
  1087
        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
icculus@7561
  1088
    }
icculus@7561
  1089
    if ((keystate[SDL_SCANCODE_RSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
icculus@7561
  1090
        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RSHIFT);
icculus@7561
  1091
    }
slouken@12154
  1092
slouken@12154
  1093
    /* Update the clipping rect in case someone else has stolen it */
slouken@12154
  1094
    WIN_UpdateClipCursorForWindows();
slouken@1895
  1095
}
slouken@1895
  1096
slouken@11959
  1097
/* to work around #3931, a bug introduced in Win10 Fall Creators Update (build nr. 16299)
slouken@11959
  1098
   we need to detect the windows version. this struct and the function below does that.
slouken@11959
  1099
   usually this struct and the corresponding function (RtlGetVersion) are in <Ntddk.h>
slouken@11959
  1100
   but here we just load it dynamically */
slouken@11959
  1101
struct SDL_WIN_OSVERSIONINFOW {
slouken@11959
  1102
    ULONG dwOSVersionInfoSize;
slouken@11959
  1103
    ULONG dwMajorVersion;
slouken@11959
  1104
    ULONG dwMinorVersion;
slouken@11959
  1105
    ULONG dwBuildNumber;
slouken@11959
  1106
    ULONG dwPlatformId;
slouken@11959
  1107
    WCHAR szCSDVersion[128];
slouken@11959
  1108
};
slouken@11959
  1109
slouken@11959
  1110
static SDL_bool
slouken@11959
  1111
IsWin10FCUorNewer(void)
slouken@11959
  1112
{
slouken@11959
  1113
    HMODULE handle = GetModuleHandleW(L"ntdll.dll");
slouken@11959
  1114
    if (handle) {
slouken@11959
  1115
        typedef LONG(WINAPI* RtlGetVersionPtr)(struct SDL_WIN_OSVERSIONINFOW*);
slouken@11959
  1116
        RtlGetVersionPtr getVersionPtr = (RtlGetVersionPtr)GetProcAddress(handle, "RtlGetVersion");
slouken@11959
  1117
        if (getVersionPtr != NULL) {
slouken@11959
  1118
            struct SDL_WIN_OSVERSIONINFOW info;
slouken@11959
  1119
            SDL_zero(info);
slouken@11959
  1120
            info.dwOSVersionInfoSize = sizeof(info);
slouken@11959
  1121
            if (getVersionPtr(&info) == 0) { /* STATUS_SUCCESS == 0 */
slouken@12153
  1122
                if ((info.dwMajorVersion == 10 && info.dwMinorVersion == 0 && info.dwBuildNumber >= 16299) ||
slouken@12153
  1123
                    (info.dwMajorVersion == 10 && info.dwMinorVersion > 0) ||
slouken@12153
  1124
                    (info.dwMajorVersion > 10))
slouken@11959
  1125
                {
slouken@11959
  1126
                    return SDL_TRUE;
slouken@11959
  1127
                }
slouken@11959
  1128
            }
slouken@11959
  1129
        }
slouken@11959
  1130
    }
slouken@11959
  1131
    return SDL_FALSE;
slouken@11959
  1132
}
slouken@11959
  1133
slouken@1895
  1134
static int app_registered = 0;
slouken@1895
  1135
LPTSTR SDL_Appname = NULL;
slouken@1895
  1136
Uint32 SDL_Appstyle = 0;
slouken@1895
  1137
HINSTANCE SDL_Instance = NULL;
slouken@1895
  1138
slouken@1895
  1139
/* Register the class for this application */
slouken@1895
  1140
int
slouken@1895
  1141
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
slouken@1895
  1142
{
slouken@11261
  1143
    const char *hint;
slouken@10426
  1144
    WNDCLASSEX wcex;
slouken@10426
  1145
    TCHAR path[MAX_PATH];
slouken@1895
  1146
slouken@1895
  1147
    /* Only do this once... */
slouken@1895
  1148
    if (app_registered) {
slouken@1895
  1149
        ++app_registered;
slouken@1895
  1150
        return (0);
slouken@1895
  1151
    }
slouken@1895
  1152
    if (!name && !SDL_Appname) {
slouken@1895
  1153
        name = "SDL_app";
slouken@5086
  1154
#if defined(CS_BYTEALIGNCLIENT) || defined(CS_OWNDC)
slouken@1895
  1155
        SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
slouken@5086
  1156
#endif
slouken@1895
  1157
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
  1158
    }
slouken@1895
  1159
slouken@1895
  1160
    if (name) {
slouken@1895
  1161
        SDL_Appname = WIN_UTF8ToString(name);
slouken@1895
  1162
        SDL_Appstyle = style;
slouken@1895
  1163
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
  1164
    }
slouken@1895
  1165
slouken@1895
  1166
    /* Register the application class */
slouken@10427
  1167
    wcex.cbSize         = sizeof(WNDCLASSEX);
slouken@10427
  1168
    wcex.hCursor        = NULL;
slouken@10427
  1169
    wcex.hIcon          = NULL;
slouken@10427
  1170
    wcex.hIconSm        = NULL;
slouken@10427
  1171
    wcex.lpszMenuName   = NULL;
slouken@10427
  1172
    wcex.lpszClassName  = SDL_Appname;
slouken@10427
  1173
    wcex.style          = SDL_Appstyle;
slouken@10427
  1174
    wcex.hbrBackground  = NULL;
slouken@10427
  1175
    wcex.lpfnWndProc    = WIN_WindowProc;
slouken@10427
  1176
    wcex.hInstance      = SDL_Instance;
slouken@10427
  1177
    wcex.cbClsExtra     = 0;
slouken@10427
  1178
    wcex.cbWndExtra     = 0;
slouken@10427
  1179
slouken@11261
  1180
    hint = SDL_GetHint(SDL_HINT_WINDOWS_INTRESOURCE_ICON);
slouken@11261
  1181
    if (hint && *hint) {
slouken@11261
  1182
        wcex.hIcon = LoadIcon(SDL_Instance, MAKEINTRESOURCE(SDL_atoi(hint)));
slouken@11261
  1183
slouken@11261
  1184
        hint = SDL_GetHint(SDL_HINT_WINDOWS_INTRESOURCE_ICON_SMALL);
slouken@11261
  1185
        if (hint && *hint) {
slouken@11261
  1186
            wcex.hIconSm = LoadIcon(SDL_Instance, MAKEINTRESOURCE(SDL_atoi(hint)));
slouken@11261
  1187
        }
slouken@11261
  1188
    } else {
slouken@11261
  1189
        /* Use the first icon as a default icon, like in the Explorer */
slouken@11261
  1190
        GetModuleFileName(SDL_Instance, path, MAX_PATH);
slouken@11261
  1191
        ExtractIconEx(path, 0, &wcex.hIcon, &wcex.hIconSm, 1);
slouken@11261
  1192
    }
slouken@10427
  1193
slouken@10426
  1194
    if (!RegisterClassEx(&wcex)) {
icculus@7037
  1195
        return SDL_SetError("Couldn't register application class");
slouken@1895
  1196
    }
slouken@1895
  1197
slouken@11959
  1198
    isWin10FCUorNewer = IsWin10FCUorNewer();
slouken@11959
  1199
slouken@1895
  1200
    app_registered = 1;
icculus@7037
  1201
    return 0;
slouken@1895
  1202
}
slouken@1895
  1203
slouken@1895
  1204
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
slouken@1895
  1205
void
slouken@1895
  1206
SDL_UnregisterApp()
slouken@1895
  1207
{
slouken@10426
  1208
    WNDCLASSEX wcex;
slouken@1895
  1209
slouken@1895
  1210
    /* SDL_RegisterApp might not have been called before */
slouken@1895
  1211
    if (!app_registered) {
slouken@1895
  1212
        return;
slouken@1895
  1213
    }
slouken@1895
  1214
    --app_registered;
slouken@1895
  1215
    if (app_registered == 0) {
slouken@1895
  1216
        /* Check for any registered window classes. */
slouken@10426
  1217
        if (GetClassInfoEx(SDL_Instance, SDL_Appname, &wcex)) {
slouken@1895
  1218
            UnregisterClass(SDL_Appname, SDL_Instance);
slouken@10426
  1219
            if (wcex.hIcon) DestroyIcon(wcex.hIcon);
slouken@10426
  1220
            if (wcex.hIconSm) DestroyIcon(wcex.hIconSm);
slouken@1895
  1221
        }
slouken@1895
  1222
        SDL_free(SDL_Appname);
slouken@1895
  1223
        SDL_Appname = NULL;
slouken@1895
  1224
    }
slouken@1895
  1225
}
slouken@1895
  1226
slouken@6044
  1227
#endif /* SDL_VIDEO_DRIVER_WINDOWS */
slouken@6044
  1228
slouken@1895
  1229
/* vi: set ts=4 sw=4 expandtab: */