src/video/win32/SDL_win32events.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 27 Nov 2008 21:53:18 +0000
changeset 2794 f7872b7a8732
parent 2766 5955b6550d7e
child 2859 99210400e8b9
permissions -rw-r--r--
Fixed mouse coordinate range on Mac OS X
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#if (_WIN32_WINNT < 0x0501)
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#undef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include "SDL_config.h"
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#include "SDL_win32video.h"
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#include "SDL_syswm.h"
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#include "SDL_vkeys.h"
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#include "../../events/SDL_events_c.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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/* 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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extern HCTX *g_hCtx;
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extern HANDLE *mice;
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extern int total_mice;
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extern int tablet;
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int pressure = 0;               /* the pressure reported by the tablet */
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static WPARAM
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RemapVKEY(WPARAM wParam, LPARAM lParam)
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{
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    int i;
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    BYTE scancode = (BYTE) ((lParam >> 16) & 0xFF);
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    /* Windows remaps alphabetic keys based on current layout.
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       We try to provide USB scancodes, so undo this mapping.
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     */
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    if (wParam >= 'A' && wParam <= 'Z') {
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        if (scancode != alpha_scancodes[wParam - 'A']) {
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            for (i = 0; i < SDL_arraysize(alpha_scancodes); ++i) {
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                if (scancode == alpha_scancodes[i]) {
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                    wParam = 'A' + i;
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                    break;
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                }
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            }
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        }
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    }
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    /* Keypad keys are a little trickier, we always scan for them. */
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    for (i = 0; i < SDL_arraysize(keypad_scancodes); ++i) {
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        if (scancode == keypad_scancodes[i]) {
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            wParam = VK_NUMPAD0 + i;
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            break;
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        }
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    }
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    return wParam;
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}
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LRESULT CALLBACK
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WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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    SDL_WindowData *data;
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    RAWINPUT *raw;
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    PACKET packet;
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    /* Send a SDL_SYSWMEVENT if the application wants them */
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    if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
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        SDL_SysWMmsg wmmsg;
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        SDL_VERSION(&wmmsg.version);
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        wmmsg.hwnd = hwnd;
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        wmmsg.msg = msg;
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        wmmsg.wParam = wParam;
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        wmmsg.lParam = lParam;
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        SDL_SendSysWMEvent(&wmmsg);
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    }
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    /* Get the window data for the window */
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    data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
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    if (!data) {
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        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
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    }
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#ifdef WMMSG_DEBUG
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    {
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        FILE *log = fopen("wmmsg.txt", "a");
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        fprintf(log, "Received windows message: %p ", hwnd);
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        if (msg > MAX_WMMSG) {
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            fprintf(log, "%d", msg);
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        } else {
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            fprintf(log, "%s", wmtab[msg]);
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        }
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        fprintf(log, " -- 0x%X, 0x%X\n", wParam, lParam);
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        fclose(log);
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    }
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#endif
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    switch (msg) {
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    case WT_PACKET:
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        {
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            /* if we receive such data we need to update the pressure */
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            SDL_VideoData *videodata = data->videodata;
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            if (videodata->wintabDLL
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                && videodata->WTPacket((HCTX) lParam, wParam, &packet)) {
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                SDL_ChangeEnd(tablet, (int) packet.pkCursor);
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                pressure = (int) packet.pkNormalPressure;
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            }
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        }
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        break;
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    case WT_PROXIMITY:
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        {
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            /* checking where the proximity message showed up */
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            int h_context = LOWORD(lParam);
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            POINT point;
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            GetCursorPos(&point);
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            ScreenToClient(hwnd, &point);
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            /* are we in proximity or out of proximity */
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            if (h_context == 0) {
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                SDL_SendProximity(tablet, point.x, point.y, SDL_PROXIMITYOUT);
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            } else {
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                SDL_SendProximity(tablet, point.x, point.y, SDL_PROXIMITYIN);
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            }
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        }
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        break;
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    case WM_SHOWWINDOW:
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        {
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            if (wParam) {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN, 0,
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                                    0);
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            } else {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_HIDDEN, 0,
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                                    0);
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            }
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        }
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        break;
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    case WM_ACTIVATE:
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        {
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            int index;
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            SDL_Keyboard *keyboard;
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            BOOL minimized;
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            minimized = HIWORD(wParam);
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            index = data->videodata->keyboard;
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            keyboard = SDL_GetKeyboard(index);
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            if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN,
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                                    0, 0);
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                SDL_SendWindowEvent(data->windowID,
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                                    SDL_WINDOWEVENT_RESTORED, 0, 0);
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                if (IsZoomed(hwnd)) {
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                    SDL_SendWindowEvent(data->windowID,
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                                        SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
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                }
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                if (keyboard && keyboard->focus != data->windowID) {
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                    SDL_SetKeyboardFocus(index, data->windowID);
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                }
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                /* FIXME: Update keyboard state */
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            } else {
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                if (keyboard && keyboard->focus == data->windowID) {
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                    SDL_SetKeyboardFocus(index, 0);
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                }
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                if (minimized) {
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                    SDL_SendWindowEvent(data->windowID,
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                                        SDL_WINDOWEVENT_MINIMIZED, 0, 0);
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                }
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            }
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        }
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        return (0);
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    case WM_INPUT:             /* mouse events */
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        {
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            LPBYTE lpb;
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            int w, h;
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            const RAWINPUTHEADER *header;
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            int index;
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            int i;
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            int size = 0;
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            const RAWMOUSE *raw_mouse = NULL;
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            POINT point;
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            USHORT flags;
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            /* we're collecting data from the mouse */
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            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, NULL, &size,
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                            sizeof(RAWINPUTHEADER));
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            lpb = SDL_stack_alloc(BYTE, size);
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            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, lpb, &size,
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                            sizeof(RAWINPUTHEADER));
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            raw = (RAWINPUT *) lpb;
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            header = &raw->header;
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            flags = raw->data.mouse.usButtonFlags;
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            /* we're checking which mouse generated the event */
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            for (i = 0; i < total_mice; ++i) {
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                if (mice[i] == header->hDevice) {
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                    index = i;
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                    break;
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                }
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            }
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/* FIXME: Doesn't this defeat the point of using raw input? */
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            GetCursorPos(&point);
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            /* if the message was sent by a tablet we have to send also pressure */
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            if (index == tablet) {
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                SDL_SendMouseMotion(index, 0, point.x, point.y, pressure);
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            } else {
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                SDL_SendMouseMotion(index, 0, point.x, point.y, 0);
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            }
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            /* we're sending mouse buttons messages to check up if sth changed */
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            if (flags & RI_MOUSE_LEFT_BUTTON_DOWN) {
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                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_LEFT);
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            } else if (flags & RI_MOUSE_LEFT_BUTTON_UP) {
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                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_LEFT);
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            }
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   258
            if (flags & RI_MOUSE_MIDDLE_BUTTON_DOWN) {
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   259
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_MIDDLE);
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   260
            } else if (flags & RI_MOUSE_MIDDLE_BUTTON_UP) {
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   261
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_MIDDLE);
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   262
            }
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   263
            if (flags & RI_MOUSE_RIGHT_BUTTON_DOWN) {
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   264
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_RIGHT);
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            } else if (flags & RI_MOUSE_RIGHT_BUTTON_UP) {
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                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_RIGHT);
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   267
            }
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   268
            if (flags & RI_MOUSE_BUTTON_4_DOWN) {
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                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X1);
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   270
            } else if (flags & RI_MOUSE_BUTTON_4_UP) {
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   271
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X1);
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   272
            }
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   273
            if (flags & RI_MOUSE_BUTTON_5_DOWN) {
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   274
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X2);
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   275
            } else if (flags & RI_MOUSE_BUTTON_5_UP) {
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   276
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X2);
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   277
            }
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   278
            if (flags & RI_MOUSE_WHEEL) {
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   279
                if (raw->data.mouse.usButtonData != 0) {
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   280
                    SDL_SendMouseWheel(index, 0,
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   281
                                       raw->data.mouse.usButtonData);
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   282
                }
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   283
            }
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   284
            SDL_stack_free(lpb);
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   285
        }
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   286
        return (0);
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   287
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   288
    case WM_MOUSELEAVE:
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   289
        {
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   290
            int index;
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   291
            SDL_Mouse *mouse;
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   292
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   293
            index = data->videodata->mouse;
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   294
            mouse = SDL_GetMouse(index);
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   295
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   296
            if (mouse->focus == data->windowID) {
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   297
                SDL_SetMouseFocus(index, 0);
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   298
            }
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   299
        }
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   300
        return (0);
slouken@1895
   301
slouken@1895
   302
    case WM_SYSKEYDOWN:
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   303
    case WM_KEYDOWN:
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   304
        {
slouken@1895
   305
            int index;
slouken@1895
   306
slouken@1895
   307
            /* Ignore repeated keys */
slouken@1895
   308
            if (lParam & REPEATED_KEYMASK) {
slouken@1895
   309
                return (0);
slouken@1895
   310
            }
slouken@1895
   311
slouken@1895
   312
            index = data->videodata->keyboard;
slouken@2310
   313
            wParam = RemapVKEY(wParam, lParam);
slouken@1895
   314
            switch (wParam) {
slouken@1895
   315
            case VK_CONTROL:
slouken@1895
   316
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   317
                    wParam = VK_RCONTROL;
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   318
                else
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   319
                    wParam = VK_LCONTROL;
slouken@1895
   320
                break;
slouken@1895
   321
            case VK_SHIFT:
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   322
                /* EXTENDED trick doesn't work here */
slouken@1895
   323
                {
slouken@2308
   324
                    Uint8 *state = SDL_GetKeyboardState(NULL);
slouken@2308
   325
                    if (state[SDL_SCANCODE_LSHIFT] == SDL_RELEASED
slouken@1895
   326
                        && (GetKeyState(VK_LSHIFT) & 0x8000)) {
slouken@1895
   327
                        wParam = VK_LSHIFT;
slouken@2308
   328
                    } else if (state[SDL_SCANCODE_RSHIFT] == SDL_RELEASED
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   329
                               && (GetKeyState(VK_RSHIFT) & 0x8000)) {
slouken@1895
   330
                        wParam = VK_RSHIFT;
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   331
                    } else {
slouken@1895
   332
                        /* Probably a key repeat */
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   333
                        return (0);
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   334
                    }
slouken@1895
   335
                }
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   336
                break;
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   337
            case VK_MENU:
slouken@1895
   338
                if (lParam & EXTENDED_KEYMASK)
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   339
                    wParam = VK_RMENU;
slouken@1895
   340
                else
slouken@1895
   341
                    wParam = VK_LMENU;
slouken@1895
   342
                break;
slouken@2313
   343
            case VK_RETURN:
slouken@2313
   344
                if (lParam & EXTENDED_KEYMASK)
slouken@2313
   345
                    wParam = VK_ENTER;
slouken@2313
   346
                break;
slouken@1895
   347
            }
slouken@2308
   348
            if (wParam < 256) {
slouken@2308
   349
                SDL_SendKeyboardKey(index, SDL_PRESSED,
slouken@2308
   350
                                    data->videodata->key_layout[wParam]);
slouken@2308
   351
            }
slouken@1895
   352
        }
slouken@1895
   353
        return (0);
slouken@1895
   354
slouken@1895
   355
    case WM_SYSKEYUP:
slouken@1895
   356
    case WM_KEYUP:
slouken@1895
   357
        {
slouken@1895
   358
            int index;
slouken@1895
   359
slouken@1895
   360
            index = data->videodata->keyboard;
slouken@2310
   361
            wParam = RemapVKEY(wParam, lParam);
slouken@1895
   362
            switch (wParam) {
slouken@1895
   363
            case VK_CONTROL:
slouken@1895
   364
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   365
                    wParam = VK_RCONTROL;
slouken@1895
   366
                else
slouken@1895
   367
                    wParam = VK_LCONTROL;
slouken@1895
   368
                break;
slouken@1895
   369
            case VK_SHIFT:
slouken@1895
   370
                /* EXTENDED trick doesn't work here */
slouken@1895
   371
                {
slouken@2308
   372
                    Uint8 *state = SDL_GetKeyboardState(NULL);
slouken@2308
   373
                    if (state[SDL_SCANCODE_LSHIFT] == SDL_PRESSED
slouken@1895
   374
                        && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
slouken@1895
   375
                        wParam = VK_LSHIFT;
slouken@2308
   376
                    } else if (state[SDL_SCANCODE_RSHIFT] == SDL_PRESSED
slouken@1895
   377
                               && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
slouken@1895
   378
                        wParam = VK_RSHIFT;
slouken@1895
   379
                    } else {
slouken@1895
   380
                        /* Probably a key repeat */
slouken@1895
   381
                        return (0);
slouken@1895
   382
                    }
slouken@1895
   383
                }
slouken@1895
   384
                break;
slouken@1895
   385
            case VK_MENU:
slouken@1895
   386
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   387
                    wParam = VK_RMENU;
slouken@1895
   388
                else
slouken@1895
   389
                    wParam = VK_LMENU;
slouken@1895
   390
                break;
slouken@2313
   391
            case VK_RETURN:
slouken@2313
   392
                if (lParam & EXTENDED_KEYMASK)
slouken@2313
   393
                    wParam = VK_ENTER;
slouken@2313
   394
                break;
slouken@1895
   395
            }
slouken@2710
   396
slouken@1895
   397
            /* Windows only reports keyup for print screen */
slouken@1895
   398
            if (wParam == VK_SNAPSHOT
slouken@2308
   399
                && SDL_GetKeyboardState(NULL)[SDL_SCANCODE_PRINTSCREEN] ==
slouken@2308
   400
                SDL_RELEASED) {
slouken@1895
   401
                SDL_SendKeyboardKey(index, SDL_PRESSED,
slouken@2308
   402
                                    data->videodata->key_layout[wParam]);
slouken@1895
   403
            }
slouken@2308
   404
            if (wParam < 256) {
slouken@2308
   405
                SDL_SendKeyboardKey(index, SDL_RELEASED,
slouken@2308
   406
                                    data->videodata->key_layout[wParam]);
slouken@2308
   407
            }
slouken@1895
   408
        }
slouken@1895
   409
        return (0);
slouken@1895
   410
slouken@2309
   411
    case WM_CHAR:
slouken@2309
   412
        {
slouken@2309
   413
            char text[4];
slouken@2309
   414
slouken@2309
   415
            /* Convert to UTF-8 and send it on... */
slouken@2309
   416
            if (wParam <= 0x7F) {
slouken@2309
   417
                text[0] = (char) wParam;
slouken@2309
   418
                text[1] = '\0';
slouken@2309
   419
            } else if (wParam <= 0x7FF) {
slouken@2309
   420
                text[0] = 0xC0 | (char) ((wParam >> 6) & 0x1F);
slouken@2309
   421
                text[1] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   422
                text[2] = '\0';
slouken@2309
   423
            } else {
slouken@2309
   424
                text[0] = 0xE0 | (char) ((wParam >> 12) & 0x0F);
slouken@2309
   425
                text[1] = 0x80 | (char) ((wParam >> 6) & 0x3F);
slouken@2309
   426
                text[2] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   427
                text[3] = '\0';
slouken@2309
   428
            }
slouken@2309
   429
            SDL_SendKeyboardText(data->videodata->keyboard, text);
slouken@2309
   430
        }
slouken@2309
   431
        return (0);
slouken@2309
   432
slouken@2311
   433
    case WM_INPUTLANGCHANGE:
slouken@2311
   434
        {
slouken@2311
   435
            WIN_UpdateKeymap(data->videodata->keyboard);
slouken@2311
   436
        }
slouken@2311
   437
        return (1);
slouken@2311
   438
slouken@1895
   439
    case WM_GETMINMAXINFO:
slouken@1895
   440
        {
slouken@1895
   441
            MINMAXINFO *info;
slouken@1895
   442
            RECT size;
slouken@1895
   443
            int x, y;
slouken@1895
   444
            int w, h;
slouken@1895
   445
            int style;
slouken@1895
   446
slouken@1895
   447
            /* If we allow resizing, let the resize happen naturally */
slouken@1895
   448
            if (SDL_GetWindowFlags(data->windowID) & SDL_WINDOW_RESIZABLE) {
slouken@1895
   449
                return (0);
slouken@1895
   450
            }
slouken@1895
   451
slouken@1895
   452
            /* Get the current position of our window */
slouken@1895
   453
            GetWindowRect(hwnd, &size);
slouken@1895
   454
            x = size.left;
slouken@1895
   455
            y = size.top;
slouken@1895
   456
slouken@1895
   457
            /* Calculate current size of our window */
slouken@1895
   458
            SDL_GetWindowSize(data->windowID, &w, &h);
slouken@1895
   459
            size.top = 0;
slouken@1895
   460
            size.left = 0;
slouken@1895
   461
            size.bottom = h;
slouken@1895
   462
            size.right = w;
slouken@1895
   463
slouken@1895
   464
            /* DJM - according to the docs for GetMenu(), the
slouken@1895
   465
               return value is undefined if hwnd is a child window.
slouken@1895
   466
               Aparently it's too difficult for MS to check
slouken@1895
   467
               inside their function, so I have to do it here.
slouken@1895
   468
             */
slouken@1895
   469
            style = GetWindowLong(hwnd, GWL_STYLE);
slouken@2710
   470
            AdjustWindowRect(&size, style,
slouken@2710
   471
                             style & WS_CHILDWINDOW ? FALSE : GetMenu(hwnd)
slouken@2710
   472
                             != NULL);
slouken@1895
   473
            w = size.right - size.left;
slouken@1895
   474
            h = size.bottom - size.top;
slouken@1895
   475
slouken@1895
   476
            /* Fix our size to the current size */
slouken@1895
   477
            info = (MINMAXINFO *) lParam;
slouken@1895
   478
            info->ptMaxSize.x = w;
slouken@1895
   479
            info->ptMaxSize.y = h;
slouken@1895
   480
            info->ptMaxPosition.x = x;
slouken@1895
   481
            info->ptMaxPosition.y = y;
slouken@1895
   482
            info->ptMinTrackSize.x = w;
slouken@1895
   483
            info->ptMinTrackSize.y = h;
slouken@1895
   484
            info->ptMaxTrackSize.x = w;
slouken@1895
   485
            info->ptMaxTrackSize.y = h;
slouken@1895
   486
        }
slouken@1895
   487
        return (0);
slouken@1895
   488
slouken@1895
   489
    case WM_WINDOWPOSCHANGED:
slouken@1895
   490
        {
slouken@1895
   491
            RECT rect;
slouken@1895
   492
            int x, y;
slouken@1895
   493
            int w, h;
slouken@1895
   494
            Uint32 window_flags;
slouken@1895
   495
slouken@1895
   496
            GetClientRect(hwnd, &rect);
slouken@1895
   497
            ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   498
            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   499
slouken@1895
   500
            window_flags = SDL_GetWindowFlags(data->windowID);
slouken@1895
   501
            if ((window_flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@1895
   502
                (window_flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@1895
   503
                ClipCursor(&rect);
slouken@1895
   504
            }
slouken@1895
   505
slouken@1895
   506
            x = rect.left;
slouken@1895
   507
            y = rect.top;
slouken@1895
   508
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
   509
slouken@1895
   510
            w = rect.right - rect.left;
slouken@1895
   511
            h = rect.bottom - rect.top;
slouken@1895
   512
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESIZED, w,
slouken@1895
   513
                                h);
slouken@1895
   514
        }
slouken@1895
   515
        break;
slouken@1895
   516
slouken@1895
   517
    case WM_SETCURSOR:
slouken@1895
   518
        {
slouken@1895
   519
            /*
slouken@1895
   520
               Uint16 hittest;
slouken@1895
   521
slouken@1895
   522
               hittest = LOWORD(lParam);
slouken@1895
   523
               if (hittest == HTCLIENT) {
slouken@1895
   524
               SetCursor(SDL_hcursor);
slouken@1895
   525
               return (TRUE);
slouken@1895
   526
               }
slouken@1895
   527
             */
slouken@1895
   528
        }
slouken@1895
   529
        break;
slouken@1895
   530
slouken@1895
   531
        /* We are about to get palette focus! */
slouken@1895
   532
    case WM_QUERYNEWPALETTE:
slouken@1895
   533
        {
slouken@1895
   534
            /*
slouken@1895
   535
               WIN_RealizePalette(current_video);
slouken@1895
   536
               return (TRUE);
slouken@1895
   537
             */
slouken@1895
   538
        }
slouken@1895
   539
        break;
slouken@1895
   540
slouken@1895
   541
        /* Another application changed the palette */
slouken@1895
   542
    case WM_PALETTECHANGED:
slouken@1895
   543
        {
slouken@1895
   544
            /*
slouken@1895
   545
               WIN_PaletteChanged(current_video, (HWND) wParam);
slouken@1895
   546
             */
slouken@1895
   547
        }
slouken@1895
   548
        break;
slouken@1895
   549
slouken@1895
   550
        /* We were occluded, refresh our display */
slouken@1895
   551
    case WM_PAINT:
slouken@1895
   552
        {
slouken@1895
   553
            RECT rect;
slouken@1895
   554
            if (GetUpdateRect(hwnd, &rect, FALSE)) {
slouken@1895
   555
                ValidateRect(hwnd, &rect);
slouken@1895
   556
                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_EXPOSED,
slouken@1895
   557
                                    0, 0);
slouken@1895
   558
            }
slouken@1895
   559
        }
slouken@1895
   560
        return (0);
slouken@1895
   561
slouken@1895
   562
        /* We'll do our own drawing, prevent flicker */
slouken@1895
   563
    case WM_ERASEBKGND:
slouken@1895
   564
        {
slouken@1895
   565
        }
slouken@1895
   566
        return (1);
slouken@1895
   567
slouken@1895
   568
    case WM_SYSCOMMAND:
slouken@1895
   569
        {
slouken@1895
   570
            /* Don't start the screensaver or blank the monitor in fullscreen apps */
slouken@1895
   571
            if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
slouken@1895
   572
                (wParam & 0xFFF0) == SC_MONITORPOWER) {
slouken@1895
   573
                if (SDL_GetWindowFlags(data->windowID) &
slouken@1895
   574
                    SDL_WINDOW_FULLSCREEN) {
slouken@1895
   575
                    return (0);
slouken@1895
   576
                }
slouken@1895
   577
            }
slouken@1895
   578
        }
slouken@1895
   579
        break;
slouken@1895
   580
slouken@1895
   581
    case WM_CLOSE:
slouken@1895
   582
        {
slouken@1895
   583
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@1895
   584
        }
slouken@1895
   585
        return (0);
slouken@1895
   586
    }
slouken@1895
   587
    return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
slouken@1895
   588
}
slouken@1895
   589
slouken@1895
   590
void
slouken@1895
   591
WIN_PumpEvents(_THIS)
slouken@1895
   592
{
slouken@1895
   593
    MSG msg;
slouken@1895
   594
    while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
slouken@1895
   595
        TranslateMessage(&msg);
slouken@1895
   596
        DispatchMessage(&msg);
slouken@1895
   597
    }
slouken@1895
   598
}
slouken@1895
   599
slouken@1895
   600
static int app_registered = 0;
slouken@1895
   601
LPTSTR SDL_Appname = NULL;
slouken@1895
   602
Uint32 SDL_Appstyle = 0;
slouken@1895
   603
HINSTANCE SDL_Instance = NULL;
slouken@1895
   604
slouken@1895
   605
/* Register the class for this application */
slouken@1895
   606
int
slouken@1895
   607
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
slouken@1895
   608
{
slouken@1895
   609
    WNDCLASS class;
slouken@1895
   610
slouken@1895
   611
    /* Only do this once... */
slouken@1895
   612
    if (app_registered) {
slouken@1895
   613
        ++app_registered;
slouken@1895
   614
        return (0);
slouken@1895
   615
    }
slouken@1895
   616
    if (!name && !SDL_Appname) {
slouken@1895
   617
        name = "SDL_app";
slouken@1895
   618
        SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
slouken@1895
   619
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   620
    }
slouken@1895
   621
slouken@1895
   622
    if (name) {
slouken@1895
   623
        SDL_Appname = WIN_UTF8ToString(name);
slouken@1895
   624
        SDL_Appstyle = style;
slouken@1895
   625
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   626
    }
slouken@1895
   627
slouken@1895
   628
    /* Register the application class */
slouken@1895
   629
    class.hCursor = NULL;
slouken@2710
   630
    class.hIcon =
slouken@2710
   631
        LoadImage(SDL_Instance, SDL_Appname, IMAGE_ICON, 0, 0,
slouken@2710
   632
                  LR_DEFAULTCOLOR);
slouken@1895
   633
    class.lpszMenuName = NULL;
slouken@1895
   634
    class.lpszClassName = SDL_Appname;
slouken@1895
   635
    class.hbrBackground = NULL;
slouken@1895
   636
    class.hInstance = SDL_Instance;
slouken@1895
   637
    class.style = SDL_Appstyle;
slouken@1895
   638
    class.lpfnWndProc = DefWindowProc;
slouken@1895
   639
    class.cbWndExtra = 0;
slouken@1895
   640
    class.cbClsExtra = 0;
slouken@1895
   641
    if (!RegisterClass(&class)) {
slouken@1895
   642
        SDL_SetError("Couldn't register application class");
slouken@1895
   643
        return (-1);
slouken@1895
   644
    }
slouken@1895
   645
slouken@1895
   646
    app_registered = 1;
slouken@1895
   647
    return (0);
slouken@1895
   648
}
slouken@1895
   649
slouken@1895
   650
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
slouken@1895
   651
void
slouken@1895
   652
SDL_UnregisterApp()
slouken@1895
   653
{
slouken@1895
   654
    WNDCLASS class;
slouken@1895
   655
slouken@1895
   656
    /* SDL_RegisterApp might not have been called before */
slouken@1895
   657
    if (!app_registered) {
slouken@1895
   658
        return;
slouken@1895
   659
    }
slouken@1895
   660
    --app_registered;
slouken@1895
   661
    if (app_registered == 0) {
slouken@1895
   662
        /* Check for any registered window classes. */
slouken@1895
   663
        if (GetClassInfo(SDL_Instance, SDL_Appname, &class)) {
slouken@1895
   664
            UnregisterClass(SDL_Appname, SDL_Instance);
slouken@1895
   665
        }
slouken@1895
   666
        SDL_free(SDL_Appname);
slouken@1895
   667
        SDL_Appname = NULL;
slouken@1895
   668
    }
slouken@1895
   669
}
slouken@1895
   670
slouken@1895
   671
/* Sets an error message based on GetLastError() */
slouken@1895
   672
void
slouken@1895
   673
WIN_SetError(const char *prefix)
slouken@1895
   674
{
slouken@1895
   675
    TCHAR buffer[1024];
slouken@1895
   676
    char *message;
slouken@2710
   677
    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
slouken@2710
   678
                  buffer, SDL_arraysize(buffer), NULL);
slouken@1895
   679
    message = WIN_StringToUTF8(buffer);
slouken@1895
   680
    SDL_SetError("%s%s%s", prefix ? prefix : "", prefix ? ":" : "", message);
slouken@1895
   681
    SDL_free(message);
slouken@1895
   682
}
slouken@1895
   683
slouken@1895
   684
/* vi: set ts=4 sw=4 expandtab: */