src/video/windows/SDL_windowsevents.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 14 Feb 2014 11:39:58 -0800
changeset 8218 cf153cc95173
parent 8212 d278747da408
child 8253 75ad8ebb3768
permissions -rw-r--r--
Make sure we don't stay in the windows event loop forever if there are lots of events coming in quickly.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 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_syswm.h"
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#include "SDL_timer.h"
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#include "SDL_vkeys.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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/* 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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/* 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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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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    char bIsExtended;
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    int nScanCode = ( lParam >> 16 ) & 0xFF;
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    /* 0x45 here to work around both pause and numlock sharing the same scancode, so use the VK key to tell them apart */
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    if ( nScanCode == 0 || nScanCode == 0x45 )
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    {
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        switch( wParam )
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        {
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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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    if ( nScanCode > 127 )
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        return SDL_SCANCODE_UNKNOWN;
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    code = windows_scancode_table[nScanCode];
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    bIsExtended = ( lParam & ( 1 << 24 ) ) != 0;
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    if ( !bIsExtended )
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    {
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        switch ( code )
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        {
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        case SDL_SCANCODE_HOME:
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            return SDL_SCANCODE_KP_7;
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        case SDL_SCANCODE_UP:
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            return SDL_SCANCODE_KP_8;
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        case SDL_SCANCODE_PAGEUP:
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            return SDL_SCANCODE_KP_9;
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        case SDL_SCANCODE_LEFT:
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            return SDL_SCANCODE_KP_4;
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        case SDL_SCANCODE_RIGHT:
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            return SDL_SCANCODE_KP_6;
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        case SDL_SCANCODE_END:
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            return SDL_SCANCODE_KP_1;
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        case SDL_SCANCODE_DOWN:
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            return SDL_SCANCODE_KP_2;
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        case SDL_SCANCODE_PAGEDOWN:
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            return SDL_SCANCODE_KP_3;
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        case SDL_SCANCODE_INSERT:
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            return SDL_SCANCODE_KP_0;
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        case SDL_SCANCODE_DELETE:
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            return SDL_SCANCODE_KP_PERIOD;
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        case SDL_SCANCODE_PRINTSCREEN:
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            return SDL_SCANCODE_KP_MULTIPLY;
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        default:
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            break;
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        }
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    }
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    else
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    {
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        switch ( code )
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        {
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        case SDL_SCANCODE_RETURN:
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            return SDL_SCANCODE_KP_ENTER;
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        case SDL_SCANCODE_LALT:
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            return SDL_SCANCODE_RALT;
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        case SDL_SCANCODE_LCTRL:
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            return SDL_SCANCODE_RCTRL;
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        case SDL_SCANCODE_SLASH:
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            return SDL_SCANCODE_KP_DIVIDE;
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        case SDL_SCANCODE_CAPSLOCK:
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            return SDL_SCANCODE_KP_PLUS;
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        default:
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            break;
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        }
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    }
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    return code;
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}
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void
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WIN_CheckWParamMouseButton( SDL_bool bwParamMousePressed, SDL_bool bSDLMousePressed, SDL_WindowData *data, Uint8 button )
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{
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    if ( bwParamMousePressed && !bSDLMousePressed )
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    {
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        SDL_SendMouseButton(data->window, 0, SDL_PRESSED, button);
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    }
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    else if ( !bwParamMousePressed && bSDLMousePressed )
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    {
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        SDL_SendMouseButton(data->window, 0, 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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void
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WIN_CheckWParamMouseButtons( WPARAM wParam, SDL_WindowData *data )
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{
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    if ( wParam != data->mouse_button_flags )
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    {
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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 );
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        WIN_CheckWParamMouseButton(  (wParam & MK_MBUTTON), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE );
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        WIN_CheckWParamMouseButton(  (wParam & MK_RBUTTON), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT );
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        WIN_CheckWParamMouseButton(  (wParam & MK_XBUTTON1), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
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        WIN_CheckWParamMouseButton(  (wParam & MK_XBUTTON2), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        data->mouse_button_flags = wParam;
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    }
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}
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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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    {
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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 );
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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 );
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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 );
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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 );
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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 );
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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 );
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        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 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_4_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_4_UP), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_5_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_5_DOWN), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_5_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_5_UP), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        data->mouse_button_flags = rawButtons;
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    }
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}
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void
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WIN_CheckAsyncMouseRelease( SDL_WindowData *data )
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{
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    Uint32 mouseFlags;
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    SHORT keyState;
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    /* mouse buttons may have changed state here, we need to resync them,
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       but we will get a WM_MOUSEMOVE right away which will fix things up if in non raw mode also
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    */
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    mouseFlags = SDL_GetMouseState( NULL, NULL );
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    keyState = GetAsyncKeyState( VK_LBUTTON );
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    WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), ( mouseFlags & SDL_BUTTON_LMASK ), data, SDL_BUTTON_LEFT );
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    keyState = GetAsyncKeyState( VK_RBUTTON );
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    WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), ( mouseFlags & SDL_BUTTON_RMASK ), data, SDL_BUTTON_RIGHT );
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    keyState = GetAsyncKeyState( VK_MBUTTON );
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    WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), ( mouseFlags & SDL_BUTTON_MMASK ), data, SDL_BUTTON_MIDDLE );
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    keyState = GetAsyncKeyState( VK_XBUTTON1 );
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    WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), ( mouseFlags & SDL_BUTTON_X1MASK ), data, SDL_BUTTON_X1 );
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    keyState = GetAsyncKeyState( VK_XBUTTON2 );
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    WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), ( mouseFlags & SDL_BUTTON_X2MASK ), data, SDL_BUTTON_X2 );
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    data->mouse_button_flags = 0;
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}
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SDL_FORCE_INLINE BOOL
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WIN_ConvertUTF32toUTF8(UINT32 codepoint, char * text)
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   289
{
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    if (codepoint <= 0x7F) {
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        text[0] = (char) codepoint;
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        text[1] = '\0';
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    } else if (codepoint <= 0x7FF) {
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        text[0] = 0xC0 | (char) ((codepoint >> 6) & 0x1F);
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        text[1] = 0x80 | (char) (codepoint & 0x3F);
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        text[2] = '\0';
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    } else if (codepoint <= 0xFFFF) {
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        text[0] = 0xE0 | (char) ((codepoint >> 12) & 0x0F);
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        text[1] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
slouken@7645
   300
        text[2] = 0x80 | (char) (codepoint & 0x3F);
slouken@7645
   301
        text[3] = '\0';
slouken@7645
   302
    } else if (codepoint <= 0x10FFFF) {
slouken@7645
   303
        text[0] = 0xF0 | (char) ((codepoint >> 18) & 0x0F);
slouken@7645
   304
        text[1] = 0x80 | (char) ((codepoint >> 12) & 0x3F);
slouken@7645
   305
        text[2] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
slouken@7645
   306
        text[3] = 0x80 | (char) (codepoint & 0x3F);
slouken@7645
   307
        text[4] = '\0';
slouken@7645
   308
    } else {
slouken@7645
   309
        return SDL_FALSE;
slouken@7645
   310
    }
slouken@7645
   311
    return SDL_TRUE;
slouken@7645
   312
}
slouken@7645
   313
slouken@1895
   314
LRESULT CALLBACK
slouken@1895
   315
WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
slouken@1895
   316
{
slouken@1895
   317
    SDL_WindowData *data;
slouken@3566
   318
    LRESULT returnCode = -1;
slouken@1895
   319
slouken@1951
   320
    /* Send a SDL_SYSWMEVENT if the application wants them */
slouken@4429
   321
    if (SDL_GetEventState(SDL_SYSWMEVENT) == SDL_ENABLE) {
slouken@1951
   322
        SDL_SysWMmsg wmmsg;
slouken@1951
   323
slouken@1951
   324
        SDL_VERSION(&wmmsg.version);
slouken@4900
   325
        wmmsg.subsystem = SDL_SYSWM_WINDOWS;
slouken@5056
   326
        wmmsg.msg.win.hwnd = hwnd;
slouken@5056
   327
        wmmsg.msg.win.msg = msg;
slouken@5056
   328
        wmmsg.msg.win.wParam = wParam;
slouken@5056
   329
        wmmsg.msg.win.lParam = lParam;
slouken@1951
   330
        SDL_SendSysWMEvent(&wmmsg);
slouken@1951
   331
    }
slouken@1951
   332
slouken@1895
   333
    /* Get the window data for the window */
slouken@1895
   334
    data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
slouken@1895
   335
    if (!data) {
slouken@1895
   336
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
slouken@1895
   337
    }
jimtla@4650
   338
slouken@1895
   339
#ifdef WMMSG_DEBUG
slouken@7941
   340
    {
slouken@7941
   341
        char message[1024];
slouken@7941
   342
        if (msg > MAX_WMMSG) {
slouken@7941
   343
            SDL_snprintf(message, sizeof(message), "Received windows message: %p UNKNOWN (%d) -- 0x%X, 0x%X\n", hwnd, msg, wParam, lParam);
slouken@7941
   344
        } else {
slouken@7941
   345
            SDL_snprintf(message, sizeof(message), "Received windows message: %p %s -- 0x%X, 0x%X\n", hwnd, wmtab[msg], wParam, lParam);
slouken@7941
   346
        }
slouken@7941
   347
        OutputDebugStringA(message);
slouken@7941
   348
    }
slouken@7816
   349
#endif /* WMMSG_DEBUG */
slouken@2710
   350
dewyatt@4752
   351
    if (IME_HandleMessage(hwnd, msg, wParam, &lParam, data->videodata))
dewyatt@4752
   352
        return 0;
slouken@1895
   353
slouken@1895
   354
    switch (msg) {
slouken@1895
   355
slouken@1895
   356
    case WM_SHOWWINDOW:
slouken@1895
   357
        {
slouken@1895
   358
            if (wParam) {
slouken@3685
   359
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
   360
            } else {
slouken@3685
   361
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
   362
            }
slouken@1895
   363
        }
slouken@1895
   364
        break;
slouken@1895
   365
slouken@1895
   366
    case WM_ACTIVATE:
slouken@1895
   367
        {
slouken@1895
   368
            BOOL minimized;
slouken@1895
   369
slouken@1895
   370
            minimized = HIWORD(wParam);
slouken@1895
   371
            if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
slouken@3685
   372
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@4465
   373
                if (SDL_GetKeyboardFocus() != data->window) {
slouken@4465
   374
                    SDL_SetKeyboardFocus(data->window);
slouken@1895
   375
                }
slouken@8036
   376
                WIN_UpdateClipCursor(data->window);
slouken@8212
   377
                WIN_CheckAsyncMouseRelease(data);
slouken@6350
   378
slouken@4504
   379
                /*
slouken@4504
   380
                 * FIXME: Update keyboard state
slouken@4504
   381
                 */
slouken@4504
   382
                WIN_CheckClipboardUpdate(data->videodata);
slouken@1895
   383
            } else {
slouken@4465
   384
                if (SDL_GetKeyboardFocus() == data->window) {
slouken@4465
   385
                    SDL_SetKeyboardFocus(NULL);
slouken@1895
   386
                }
slouken@8050
   387
slouken@8050
   388
                ClipCursor(NULL);
slouken@1895
   389
            }
slouken@1895
   390
        }
slouken@3566
   391
        returnCode = 0;
slouken@3566
   392
        break;
slouken@1895
   393
slouken@7191
   394
    case WM_MOUSEMOVE:
slouken@8071
   395
        {
slouken@8071
   396
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   397
            if (!mouse->relative_mode || mouse->relative_mode_warp) {
slouken@8071
   398
                SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
slouken@8071
   399
            }
slouken@8071
   400
        }
slouken@7191
   401
        /* don't break here, fall through to check the wParam like the button presses */
slouken@7191
   402
    case WM_LBUTTONUP:
slouken@7191
   403
    case WM_RBUTTONUP:
slouken@7191
   404
    case WM_MBUTTONUP:
slouken@7191
   405
    case WM_XBUTTONUP:
slouken@7191
   406
    case WM_LBUTTONDOWN:
slouken@7191
   407
    case WM_RBUTTONDOWN:
slouken@7191
   408
    case WM_MBUTTONDOWN:
slouken@7191
   409
    case WM_XBUTTONDOWN:
slouken@8071
   410
        {
slouken@8071
   411
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   412
            if (!mouse->relative_mode || mouse->relative_mode_warp) {
slouken@8071
   413
                WIN_CheckWParamMouseButtons(wParam, data);
slouken@8071
   414
            }
slouken@8071
   415
        }
slouken@7191
   416
        break;
slouken@3139
   417
slouken@7191
   418
    case WM_INPUT:
slouken@8071
   419
        {
slouken@8071
   420
            SDL_Mouse *mouse = SDL_GetMouse();
slouken@8071
   421
            HRAWINPUT hRawInput = (HRAWINPUT)lParam;
slouken@8071
   422
            RAWINPUT inp;
slouken@8071
   423
            UINT size = sizeof(inp);
slouken@6782
   424
slouken@8084
   425
            if (!mouse->relative_mode || mouse->relative_mode_warp || mouse->focus != data->window) {
slouken@8071
   426
                break;
slouken@8071
   427
            }
slouken@6782
   428
slouken@8071
   429
            GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
slouken@6350
   430
slouken@8071
   431
            /* Mouse data */
slouken@8071
   432
            if (inp.header.dwType == RIM_TYPEMOUSE) {
slouken@8071
   433
                RAWMOUSE* mouse = &inp.data.mouse;
slouken@6350
   434
slouken@8071
   435
                if ((mouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE) {
slouken@8071
   436
                    SDL_SendMouseMotion(data->window, 0, 1, (int)mouse->lLastX, (int)mouse->lLastY);
slouken@8071
   437
                } else {
slouken@8071
   438
                    /* synthesize relative moves from the abs position */
slouken@8071
   439
                    static SDL_Point initialMousePoint;
slouken@8071
   440
                    if (initialMousePoint.x == 0 && initialMousePoint.y == 0) {
slouken@8071
   441
                        initialMousePoint.x = mouse->lLastX;
slouken@8071
   442
                        initialMousePoint.y = mouse->lLastY;
slouken@8071
   443
                    }
slouken@8071
   444
slouken@8071
   445
                    SDL_SendMouseMotion(data->window, 0, 1, (int)(mouse->lLastX-initialMousePoint.x), (int)(mouse->lLastY-initialMousePoint.y) );
slouken@8071
   446
slouken@7191
   447
                    initialMousePoint.x = mouse->lLastX;
slouken@7191
   448
                    initialMousePoint.y = mouse->lLastY;
slouken@7191
   449
                }
slouken@8071
   450
                WIN_CheckRawMouseButtons( mouse->usButtonFlags, data );
slouken@7191
   451
            }
slouken@7191
   452
        }
slouken@7191
   453
        break;
slouken@6350
   454
slouken@5049
   455
    case WM_MOUSEWHEEL:
slouken@5049
   456
        {
slouken@7813
   457
            static short s_AccumulatedMotion;
slouken@5049
   458
slouken@7813
   459
            s_AccumulatedMotion += GET_WHEEL_DELTA_WPARAM(wParam);
slouken@7813
   460
            if (s_AccumulatedMotion > 0) {
slouken@7813
   461
                while (s_AccumulatedMotion >= WHEEL_DELTA) {
slouken@7813
   462
                    SDL_SendMouseWheel(data->window, 0, 0, 1);
slouken@7813
   463
                    s_AccumulatedMotion -= WHEEL_DELTA;
slouken@7813
   464
                }
slouken@7813
   465
            } else {
slouken@7813
   466
                while (s_AccumulatedMotion <= -WHEEL_DELTA) {
slouken@7813
   467
                    SDL_SendMouseWheel(data->window, 0, 0, -1);
slouken@7813
   468
                    s_AccumulatedMotion += WHEEL_DELTA;
slouken@7813
   469
                }
slouken@7813
   470
            }
slouken@5049
   471
        }
slouken@8071
   472
        break;
slouken@5049
   473
slouken@7911
   474
    case WM_MOUSEHWHEEL:
slouken@7911
   475
        {
slouken@7911
   476
            static short s_AccumulatedMotion;
slouken@7911
   477
slouken@7911
   478
            s_AccumulatedMotion += GET_WHEEL_DELTA_WPARAM(wParam);
slouken@7911
   479
            if (s_AccumulatedMotion > 0) {
slouken@7911
   480
                while (s_AccumulatedMotion >= WHEEL_DELTA) {
slouken@7912
   481
                    SDL_SendMouseWheel(data->window, 0, 1, 0);
slouken@7911
   482
                    s_AccumulatedMotion -= WHEEL_DELTA;
slouken@7911
   483
                }
slouken@7911
   484
            } else {
slouken@7911
   485
                while (s_AccumulatedMotion <= -WHEEL_DELTA) {
slouken@7912
   486
                    SDL_SendMouseWheel(data->window, 0, -1, 0);
slouken@7911
   487
                    s_AccumulatedMotion += WHEEL_DELTA;
slouken@7911
   488
                }
slouken@7911
   489
            }
slouken@7911
   490
        }
slouken@8071
   491
        break;
slouken@7911
   492
slouken@5086
   493
#ifdef WM_MOUSELEAVE
slouken@1895
   494
    case WM_MOUSELEAVE:
jorgen@7275
   495
        if (SDL_GetMouseFocus() == data->window && !SDL_GetMouse()->relative_mode) {
slouken@8035
   496
            if (!IsIconic(hwnd)) {
slouken@8035
   497
                POINT cursorPos;
slouken@8035
   498
                GetCursorPos(&cursorPos);
slouken@8035
   499
                ScreenToClient(hwnd, &cursorPos);
slouken@8035
   500
                SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
slouken@8035
   501
            }
slouken@7191
   502
            SDL_SetMouseFocus(NULL);
slouken@1895
   503
        }
slouken@3566
   504
        returnCode = 0;
slouken@3566
   505
        break;
slouken@5086
   506
#endif /* WM_MOUSELEAVE */
slouken@1895
   507
slouken@7645
   508
    case WM_KEYDOWN:
slouken@7646
   509
    case WM_SYSKEYDOWN:
slouken@7645
   510
        {
slouken@7646
   511
            SDL_Scancode code = WindowsScanCodeToSDLScanCode( lParam, wParam );
slouken@7646
   512
            if ( code != SDL_SCANCODE_UNKNOWN ) {
slouken@7646
   513
                SDL_SendKeyboardKey(SDL_PRESSED, code );
slouken@7646
   514
            }
slouken@7646
   515
        }
slouken@7646
   516
        if (msg == WM_KEYDOWN) {
slouken@7645
   517
            BYTE keyboardState[256];
slouken@7645
   518
            char text[5];
slouken@7645
   519
            UINT32 utf32 = 0;
slouken@7645
   520
slouken@7645
   521
            GetKeyboardState(keyboardState);
slouken@7645
   522
            if (ToUnicode(wParam, (lParam >> 16) & 0xff, keyboardState, (LPWSTR)&utf32, 1, 0) > 0) {
slouken@8071
   523
                WORD repetition;
slouken@8071
   524
                for (repetition = lParam & 0xffff; repetition > 0; repetition--) {
slouken@7645
   525
                    WIN_ConvertUTF32toUTF8(utf32, text);
slouken@7645
   526
                    SDL_SendKeyboardText(text);
slouken@7645
   527
                }
slouken@7645
   528
            }
slouken@7645
   529
        }
slouken@3566
   530
        returnCode = 0;
slouken@3566
   531
        break;
slouken@1895
   532
slouken@1895
   533
    case WM_SYSKEYUP:
slouken@1895
   534
    case WM_KEYUP:
slouken@1895
   535
        {
slouken@6938
   536
            SDL_Scancode code = WindowsScanCodeToSDLScanCode( lParam, wParam );
gabomdq@7975
   537
            const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
gabomdq@7975
   538
gabomdq@7975
   539
            /* Detect relevant keyboard shortcuts */
gabomdq@7975
   540
            if (keyboardState[SDL_SCANCODE_LALT] == SDL_PRESSED || keyboardState[SDL_SCANCODE_RALT] == SDL_PRESSED ) {
slouken@8218
   541
                /* ALT+F4: Close window */
slouken@8218
   542
                if (code == SDL_SCANCODE_F4) {
slouken@8218
   543
                    SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@8218
   544
                }
gabomdq@7975
   545
            }
gabomdq@7975
   546
slouken@6938
   547
            if ( code != SDL_SCANCODE_UNKNOWN ) {
slouken@6938
   548
                if (code == SDL_SCANCODE_PRINTSCREEN &&
gabomdq@7975
   549
                    keyboardState[code] == SDL_RELEASED) {
slouken@6938
   550
                    SDL_SendKeyboardKey(SDL_PRESSED, code);
slouken@6938
   551
                }
slouken@6938
   552
                SDL_SendKeyboardKey(SDL_RELEASED, code);
slouken@2308
   553
            }
slouken@1895
   554
        }
slouken@3566
   555
        returnCode = 0;
slouken@3566
   556
        break;
slouken@1895
   557
slouken@8143
   558
    case WM_UNICHAR:
slouken@8143
   559
    case WM_CHAR:
slouken@8143
   560
        /* Ignore WM_CHAR messages that come from TranslateMessage(), since we handle WM_KEY* messages directly */
slouken@8143
   561
        returnCode = 0;
slouken@8143
   562
        break;
slouken@8143
   563
slouken@5086
   564
#ifdef WM_INPUTLANGCHANGE
slouken@2311
   565
    case WM_INPUTLANGCHANGE:
slouken@2311
   566
        {
slouken@4465
   567
            WIN_UpdateKeymap();
slouken@2311
   568
        }
slouken@3566
   569
        returnCode = 1;
slouken@3566
   570
        break;
slouken@5086
   571
#endif /* WM_INPUTLANGCHANGE */
slouken@2311
   572
slouken@8036
   573
    case WM_ENTERSIZEMOVE:
slouken@8036
   574
    case WM_ENTERMENULOOP:
slouken@8036
   575
        {
slouken@8036
   576
            data->in_modal_loop = SDL_TRUE;
slouken@8036
   577
            WIN_UpdateClipCursor(data->window);
slouken@8036
   578
        }
slouken@8036
   579
        break;
slouken@8036
   580
slouken@8036
   581
    case WM_EXITSIZEMOVE:
slouken@8036
   582
    case WM_EXITMENULOOP:
slouken@8036
   583
        {
slouken@8036
   584
            data->in_modal_loop = SDL_FALSE;
slouken@8036
   585
            WIN_UpdateClipCursor(data->window);
slouken@8212
   586
slouken@8212
   587
            /* The mouse may have been released during the modal loop */
slouken@8212
   588
            WIN_CheckAsyncMouseRelease(data);
slouken@8036
   589
        }
slouken@8036
   590
        break;
slouken@8036
   591
slouken@5086
   592
#ifdef WM_GETMINMAXINFO
slouken@1895
   593
    case WM_GETMINMAXINFO:
slouken@1895
   594
        {
slouken@1895
   595
            MINMAXINFO *info;
slouken@1895
   596
            RECT size;
slouken@1895
   597
            int x, y;
slouken@1895
   598
            int w, h;
stopiccot@6682
   599
            int min_w, min_h;
slouken@6788
   600
            int max_w, max_h;
slouken@1895
   601
            int style;
slouken@3168
   602
            BOOL menu;
slouken@7191
   603
            BOOL constrain_max_size;
slouken@1895
   604
stopiccot@6682
   605
            if (SDL_IsShapedWindow(data->window))
eligottlieb@4815
   606
                Win32_ResizeWindowShape(data->window);
slouken@1895
   607
slouken@7941
   608
            /* If this is an expected size change, allow it */
slouken@7941
   609
            if (data->expected_resize) {
slouken@7941
   610
                break;
slouken@7941
   611
            }
slouken@7941
   612
slouken@1895
   613
            /* Get the current position of our window */
slouken@1895
   614
            GetWindowRect(hwnd, &size);
slouken@1895
   615
            x = size.left;
slouken@1895
   616
            y = size.top;
slouken@1895
   617
slouken@1895
   618
            /* Calculate current size of our window */
slouken@3685
   619
            SDL_GetWindowSize(data->window, &w, &h);
stopiccot@6682
   620
            SDL_GetWindowMinimumSize(data->window, &min_w, &min_h);
slouken@6788
   621
            SDL_GetWindowMaximumSize(data->window, &max_w, &max_h);
stopiccot@6682
   622
slouken@7191
   623
            /* Store in min_w and min_h difference between current size and minimal
stopiccot@6682
   624
               size so we don't need to call AdjustWindowRectEx twice */
stopiccot@6682
   625
            min_w -= w;
stopiccot@6682
   626
            min_h -= h;
slouken@6837
   627
            if (max_w && max_h) {
slouken@6837
   628
                max_w -= w;
slouken@6837
   629
                max_h -= h;
slouken@6862
   630
                constrain_max_size = TRUE;
slouken@6862
   631
            } else {
slouken@6862
   632
                constrain_max_size = FALSE;
slouken@6837
   633
            }
stopiccot@6682
   634
slouken@1895
   635
            size.top = 0;
slouken@1895
   636
            size.left = 0;
slouken@1895
   637
            size.bottom = h;
slouken@1895
   638
            size.right = w;
slouken@1895
   639
slouken@3168
   640
            style = GetWindowLong(hwnd, GWL_STYLE);
slouken@1895
   641
            /* DJM - according to the docs for GetMenu(), the
slouken@1895
   642
               return value is undefined if hwnd is a child window.
slouken@1895
   643
               Aparently it's too difficult for MS to check
slouken@1895
   644
               inside their function, so I have to do it here.
slouken@1895
   645
             */
slouken@3168
   646
            menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@3168
   647
            AdjustWindowRectEx(&size, style, menu, 0);
slouken@1895
   648
            w = size.right - size.left;
slouken@1895
   649
            h = size.bottom - size.top;
slouken@1895
   650
slouken@1895
   651
            /* Fix our size to the current size */
slouken@1895
   652
            info = (MINMAXINFO *) lParam;
stopiccot@6682
   653
            if (SDL_GetWindowFlags(data->window) & SDL_WINDOW_RESIZABLE) {
stopiccot@6682
   654
                info->ptMinTrackSize.x = w + min_w;
stopiccot@6682
   655
                info->ptMinTrackSize.y = h + min_h;
slouken@6862
   656
                if (constrain_max_size) {
slouken@6862
   657
                    info->ptMaxTrackSize.x = w + max_w;
slouken@6862
   658
                    info->ptMaxTrackSize.y = h + max_h;
slouken@6862
   659
                }
stopiccot@6682
   660
            } else {
stopiccot@6682
   661
                info->ptMaxSize.x = w;
stopiccot@6682
   662
                info->ptMaxSize.y = h;
stopiccot@6682
   663
                info->ptMaxPosition.x = x;
stopiccot@6682
   664
                info->ptMaxPosition.y = y;
stopiccot@6682
   665
                info->ptMinTrackSize.x = w;
stopiccot@6682
   666
                info->ptMinTrackSize.y = h;
stopiccot@6682
   667
                info->ptMaxTrackSize.x = w;
stopiccot@6682
   668
                info->ptMaxTrackSize.y = h;
stopiccot@6682
   669
            }
slouken@1895
   670
        }
slouken@3566
   671
        returnCode = 0;
slouken@3566
   672
        break;
slouken@5086
   673
#endif /* WM_GETMINMAXINFO */
slouken@1895
   674
slouken@1895
   675
    case WM_WINDOWPOSCHANGED:
slouken@1895
   676
        {
slouken@1895
   677
            RECT rect;
slouken@1895
   678
            int x, y;
slouken@1895
   679
            int w, h;
slouken@1895
   680
slouken@8036
   681
            if (!GetClientRect(hwnd, &rect) || IsRectEmpty(&rect)) {
slouken@3256
   682
                break;
slouken@3256
   683
            }
slouken@1895
   684
            ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   685
            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   686
slouken@8036
   687
            WIN_UpdateClipCursor(data->window);
slouken@1895
   688
slouken@1895
   689
            x = rect.left;
slouken@1895
   690
            y = rect.top;
slouken@3685
   691
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
   692
slouken@1895
   693
            w = rect.right - rect.left;
slouken@1895
   694
            h = rect.bottom - rect.top;
slouken@3685
   695
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESIZED, w,
slouken@1895
   696
                                h);
slouken@1895
   697
        }
slouken@1895
   698
        break;
slouken@1895
   699
slouken@7941
   700
    case WM_SIZE:
slouken@7941
   701
        {
slouken@7941
   702
            switch (wParam)
slouken@7941
   703
            {
slouken@7941
   704
            case SIZE_MAXIMIZED:
slouken@7941
   705
                SDL_SendWindowEvent(data->window,
slouken@7941
   706
                    SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@7941
   707
                break;
slouken@7941
   708
            case SIZE_MINIMIZED:
slouken@7941
   709
                SDL_SendWindowEvent(data->window,
slouken@7941
   710
                    SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@7941
   711
                break;
slouken@7941
   712
            default:
slouken@7941
   713
                SDL_SendWindowEvent(data->window,
slouken@7941
   714
                    SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@7941
   715
                break;
slouken@7941
   716
            }
slouken@7941
   717
        }
slouken@7941
   718
        break;
slouken@7941
   719
slouken@1895
   720
    case WM_SETCURSOR:
slouken@1895
   721
        {
slouken@3076
   722
            Uint16 hittest;
slouken@1895
   723
slouken@3076
   724
            hittest = LOWORD(lParam);
slouken@3076
   725
            if (hittest == HTCLIENT) {
slouken@5421
   726
                SetCursor(SDL_cursor);
slouken@3566
   727
                returnCode = TRUE;
slouken@3076
   728
            }
slouken@1895
   729
        }
slouken@1895
   730
        break;
slouken@1895
   731
slouken@1895
   732
        /* We were occluded, refresh our display */
slouken@1895
   733
    case WM_PAINT:
slouken@1895
   734
        {
slouken@1895
   735
            RECT rect;
slouken@1895
   736
            if (GetUpdateRect(hwnd, &rect, FALSE)) {
slouken@7295
   737
                ValidateRect(hwnd, NULL);
slouken@3685
   738
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED,
slouken@1895
   739
                                    0, 0);
slouken@1895
   740
            }
slouken@1895
   741
        }
slouken@3566
   742
        returnCode = 0;
slouken@3566
   743
        break;
slouken@3095
   744
slouken@1895
   745
        /* We'll do our own drawing, prevent flicker */
slouken@1895
   746
    case WM_ERASEBKGND:
slouken@1895
   747
        {
slouken@1895
   748
        }
slouken@1895
   749
        return (1);
slouken@1895
   750
slouken@5086
   751
#if defined(SC_SCREENSAVE) || defined(SC_MONITORPOWER)
slouken@1895
   752
    case WM_SYSCOMMAND:
slouken@1895
   753
        {
slouken@1895
   754
            /* Don't start the screensaver or blank the monitor in fullscreen apps */
slouken@1895
   755
            if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
slouken@1895
   756
                (wParam & 0xFFF0) == SC_MONITORPOWER) {
slouken@3032
   757
                if (SDL_GetVideoDevice()->suspend_screensaver) {
slouken@1895
   758
                    return (0);
slouken@1895
   759
                }
slouken@1895
   760
            }
slouken@1895
   761
        }
slouken@1895
   762
        break;
slouken@5086
   763
#endif /* System has screensaver support */
slouken@1895
   764
slouken@1895
   765
    case WM_CLOSE:
slouken@1895
   766
        {
slouken@3685
   767
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@1895
   768
        }
slouken@3566
   769
        returnCode = 0;
slouken@3566
   770
        break;
slouken@4919
   771
slouken@7191
   772
    case WM_TOUCH:
slouken@7191
   773
        {
slouken@7191
   774
            UINT i, num_inputs = LOWORD(wParam);
slouken@7191
   775
            PTOUCHINPUT inputs = SDL_stack_alloc(TOUCHINPUT, num_inputs);
slouken@7191
   776
            if (data->videodata->GetTouchInputInfo((HTOUCHINPUT)lParam, num_inputs, inputs, sizeof(TOUCHINPUT))) {
slouken@7191
   777
                RECT rect;
slouken@7191
   778
                float x, y;
slouken@4919
   779
slouken@7191
   780
                if (!GetClientRect(hwnd, &rect) ||
slouken@7191
   781
                    (rect.right == rect.left && rect.bottom == rect.top)) {
philipp@7631
   782
                    if (inputs) {
philipp@7631
   783
                        SDL_stack_free(inputs);
philipp@7631
   784
                    }
slouken@7191
   785
                    break;
slouken@7191
   786
                }
slouken@7191
   787
                ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@7191
   788
                ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@7191
   789
                rect.top *= 100;
slouken@7191
   790
                rect.left *= 100;
slouken@7191
   791
                rect.bottom *= 100;
slouken@7191
   792
                rect.right *= 100;
slouken@4932
   793
slouken@7191
   794
                for (i = 0; i < num_inputs; ++i) {
slouken@7191
   795
                    PTOUCHINPUT input = &inputs[i];
slouken@4919
   796
icculus@7543
   797
                    const SDL_TouchID touchId = (SDL_TouchID)((size_t)input->hSource);
slouken@7191
   798
                    if (!SDL_GetTouch(touchId)) {
slouken@7191
   799
                        if (SDL_AddTouch(touchId, "") < 0) {
slouken@7191
   800
                            continue;
slouken@7191
   801
                        }
slouken@7191
   802
                    }
slouken@4932
   803
slouken@7191
   804
                    /* Get the normalized coordinates for the window */
slouken@7191
   805
                    x = (float)(input->x - rect.left)/(rect.right - rect.left);
slouken@7191
   806
                    y = (float)(input->y - rect.top)/(rect.bottom - rect.top);
slouken@4932
   807
slouken@7191
   808
                    if (input->dwFlags & TOUCHEVENTF_DOWN) {
slouken@7191
   809
                        SDL_SendTouch(touchId, input->dwID, SDL_TRUE, x, y, 1.0f);
slouken@7191
   810
                    }
slouken@7191
   811
                    if (input->dwFlags & TOUCHEVENTF_MOVE) {
slouken@7191
   812
                        SDL_SendTouchMotion(touchId, input->dwID, x, y, 1.0f);
slouken@7191
   813
                    }
slouken@7191
   814
                    if (input->dwFlags & TOUCHEVENTF_UP) {
slouken@7191
   815
                        SDL_SendTouch(touchId, input->dwID, SDL_FALSE, x, y, 1.0f);
slouken@7191
   816
                    }
slouken@7191
   817
                }
slouken@7191
   818
            }
slouken@7191
   819
            SDL_stack_free(inputs);
slouken@4932
   820
slouken@7191
   821
            data->videodata->CloseTouchInputHandle((HTOUCHINPUT)lParam);
slouken@7191
   822
            return 0;
slouken@7191
   823
        }
slouken@7191
   824
        break;
slouken@6523
   825
slouken@6523
   826
    case WM_DROPFILES:
slouken@6523
   827
        {
slouken@6523
   828
            UINT i;
slouken@6523
   829
            HDROP drop = (HDROP) wParam;
slouken@6523
   830
            UINT count = DragQueryFile(drop, 0xFFFFFFFF, NULL, 0);
slouken@6523
   831
            for (i = 0; i < count; ++i) {
slouken@6523
   832
                UINT size = DragQueryFile(drop, i, NULL, 0) + 1;
slouken@6523
   833
                LPTSTR buffer = SDL_stack_alloc(TCHAR, size);
slouken@6523
   834
                if (buffer) {
slouken@6523
   835
                    if (DragQueryFile(drop, i, buffer, size)) {
slouken@6523
   836
                        char *file = WIN_StringToUTF8(buffer);
slouken@6523
   837
                        SDL_SendDropFile(file);
slouken@6523
   838
                        SDL_free(file);
slouken@6523
   839
                    }
slouken@6523
   840
                    SDL_stack_free(buffer);
slouken@6523
   841
                }
slouken@6523
   842
            }
slouken@6523
   843
            DragFinish(drop);
slouken@6523
   844
            return 0;
slouken@6523
   845
        }
slouken@6523
   846
        break;
slouken@6523
   847
    }
slouken@3566
   848
slouken@3566
   849
    /* If there's a window proc, assume it's going to handle messages */
slouken@3566
   850
    if (data->wndproc) {
slouken@3566
   851
        return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
slouken@3566
   852
    } else if (returnCode >= 0) {
slouken@3566
   853
        return returnCode;
slouken@3566
   854
    } else {
slouken@3566
   855
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
slouken@3566
   856
    }
slouken@1895
   857
}
slouken@1895
   858
slouken@1895
   859
void
slouken@1895
   860
WIN_PumpEvents(_THIS)
slouken@1895
   861
{
icculus@7561
   862
    const Uint8 *keystate;
slouken@1895
   863
    MSG msg;
slouken@8218
   864
    DWORD start_ticks = GetTickCount();
slouken@8218
   865
slouken@1895
   866
    while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
slouken@8143
   867
        /* Always translate the message in case it's a non-SDL window (e.g. with Qt integration) */
slouken@8143
   868
        TranslateMessage(&msg);
slouken@8218
   869
        DispatchMessage( &msg );
slouken@8218
   870
slouken@8218
   871
        /* Make sure we don't busy loop here forever if there are lots of events coming in */
slouken@8218
   872
        if (SDL_TICKS_PASSED(msg.time, start_ticks)) {
slouken@8218
   873
            break;
slouken@8218
   874
        }
slouken@1895
   875
    }
icculus@7561
   876
icculus@7561
   877
    /* Windows loses a shift KEYUP event when you have both pressed at once and let go of one.
icculus@7561
   878
       You won't get a KEYUP until both are released, and that keyup will only be for the second
icculus@7561
   879
       key you released. Take heroic measures and check the keystate as of the last handled event,
icculus@7561
   880
       and if we think a key is pressed when Windows doesn't, unstick it in SDL's state. */
icculus@7561
   881
    keystate = SDL_GetKeyboardState(NULL);
icculus@7561
   882
    if ((keystate[SDL_SCANCODE_LSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
icculus@7561
   883
        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
icculus@7561
   884
    }
icculus@7561
   885
    if ((keystate[SDL_SCANCODE_RSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
icculus@7561
   886
        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RSHIFT);
icculus@7561
   887
    }
slouken@1895
   888
}
slouken@1895
   889
slouken@1895
   890
static int app_registered = 0;
slouken@1895
   891
LPTSTR SDL_Appname = NULL;
slouken@1895
   892
Uint32 SDL_Appstyle = 0;
slouken@1895
   893
HINSTANCE SDL_Instance = NULL;
slouken@1895
   894
slouken@1895
   895
/* Register the class for this application */
slouken@1895
   896
int
slouken@1895
   897
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
slouken@1895
   898
{
slouken@1895
   899
    WNDCLASS class;
slouken@1895
   900
slouken@1895
   901
    /* Only do this once... */
slouken@1895
   902
    if (app_registered) {
slouken@1895
   903
        ++app_registered;
slouken@1895
   904
        return (0);
slouken@1895
   905
    }
slouken@1895
   906
    if (!name && !SDL_Appname) {
slouken@1895
   907
        name = "SDL_app";
slouken@5086
   908
#if defined(CS_BYTEALIGNCLIENT) || defined(CS_OWNDC)
slouken@1895
   909
        SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
slouken@5086
   910
#endif
slouken@1895
   911
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   912
    }
slouken@1895
   913
slouken@1895
   914
    if (name) {
slouken@1895
   915
        SDL_Appname = WIN_UTF8ToString(name);
slouken@1895
   916
        SDL_Appstyle = style;
slouken@1895
   917
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   918
    }
slouken@1895
   919
slouken@1895
   920
    /* Register the application class */
slouken@1895
   921
    class.hCursor = NULL;
slouken@2710
   922
    class.hIcon =
slouken@2710
   923
        LoadImage(SDL_Instance, SDL_Appname, IMAGE_ICON, 0, 0,
slouken@2710
   924
                  LR_DEFAULTCOLOR);
slouken@1895
   925
    class.lpszMenuName = NULL;
slouken@1895
   926
    class.lpszClassName = SDL_Appname;
slouken@1895
   927
    class.hbrBackground = NULL;
slouken@1895
   928
    class.hInstance = SDL_Instance;
slouken@1895
   929
    class.style = SDL_Appstyle;
dewyatt@4733
   930
    class.lpfnWndProc = WIN_WindowProc;
slouken@1895
   931
    class.cbWndExtra = 0;
slouken@1895
   932
    class.cbClsExtra = 0;
slouken@1895
   933
    if (!RegisterClass(&class)) {
icculus@7037
   934
        return SDL_SetError("Couldn't register application class");
slouken@1895
   935
    }
slouken@1895
   936
slouken@1895
   937
    app_registered = 1;
icculus@7037
   938
    return 0;
slouken@1895
   939
}
slouken@1895
   940
slouken@1895
   941
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
slouken@1895
   942
void
slouken@1895
   943
SDL_UnregisterApp()
slouken@1895
   944
{
slouken@1895
   945
    WNDCLASS class;
slouken@1895
   946
slouken@1895
   947
    /* SDL_RegisterApp might not have been called before */
slouken@1895
   948
    if (!app_registered) {
slouken@1895
   949
        return;
slouken@1895
   950
    }
slouken@1895
   951
    --app_registered;
slouken@1895
   952
    if (app_registered == 0) {
slouken@1895
   953
        /* Check for any registered window classes. */
slouken@1895
   954
        if (GetClassInfo(SDL_Instance, SDL_Appname, &class)) {
slouken@1895
   955
            UnregisterClass(SDL_Appname, SDL_Instance);
slouken@1895
   956
        }
slouken@1895
   957
        SDL_free(SDL_Appname);
slouken@1895
   958
        SDL_Appname = NULL;
slouken@1895
   959
    }
slouken@1895
   960
}
slouken@1895
   961
slouken@6044
   962
#endif /* SDL_VIDEO_DRIVER_WINDOWS */
slouken@6044
   963
slouken@1895
   964
/* vi: set ts=4 sw=4 expandtab: */