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SDL_sysevents.c
918 lines (815 loc) · 23.3 KB
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 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,
but WITHOUT ANY WARRANTY; without even the implied warranty of
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
License along with this library; if not, write to the Free Software
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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#include "SDL_config.h"
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#define WIN32_LEAN_AND_MEAN
#include <windows.h>
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/* Make sure XBUTTON stuff is defined that isn't in older Platform SDKs... */
#ifndef WM_XBUTTONDOWN
#define WM_XBUTTONDOWN 0x020B
#endif
#ifndef WM_XBUTTONUP
#define WM_XBUTTONUP 0x020C
#endif
#ifndef GET_XBUTTON_WPARAM
#define GET_XBUTTON_WPARAM(w) (HIWORD(w))
#endif
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#include "SDL_events.h"
#include "SDL_video.h"
#include "SDL_syswm.h"
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#include "../SDL_sysvideo.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
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#include "SDL_lowvideo.h"
#include "SDL_syswm_c.h"
#include "SDL_main.h"
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#include "SDL_loadso.h"
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#ifdef WMMSG_DEBUG
#include "wmmsg.h"
#endif
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#include "../windib/SDL_gapidibvideo.h"
#ifdef SDL_VIDEO_DRIVER_GAPI
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#include "../gapi/SDL_gapivideo.h"
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#endif
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#ifdef _WIN32_WCE
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#define IsZoomed(HWND) 1
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#define NO_GETKEYBOARDSTATE
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#if _WIN32_WCE < 420
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#define NO_CHANGEDISPLAYSETTINGS
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#endif
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#endif
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/* The window we use for everything... */
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#ifdef _WIN32_WCE
LPWSTR SDL_Appname = NULL;
#else
LPSTR SDL_Appname = NULL;
#endif
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Uint32 SDL_Appstyle = 0;
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HINSTANCE SDL_Instance = NULL;
HWND SDL_Window = NULL;
RECT SDL_bounds = {0, 0, 0, 0};
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int SDL_windowX = 0;
int SDL_windowY = 0;
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int SDL_resizing = 0;
int mouse_relative = 0;
int posted = 0;
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#ifndef NO_CHANGEDISPLAYSETTINGS
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DEVMODE SDL_desktop_mode;
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DEVMODE SDL_fullscreen_mode;
#endif
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WORD *gamma_saved = NULL;
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/* Functions called by the message processing function */
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LONG (*HandleMessage)(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)=NULL;
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void (*WIN_Activate)(_THIS, BOOL active, BOOL iconic);
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void (*WIN_RealizePalette)(_THIS);
void (*WIN_PaletteChanged)(_THIS, HWND window);
void (*WIN_WinPAINT)(_THIS, HDC hdc);
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extern void DIB_SwapGamma(_THIS);
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#ifndef NO_GETKEYBOARDSTATE
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/* Variables and support functions for SDL_ToUnicode() */
static int codepage;
static int Is9xME();
static int GetCodePage();
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static int WINAPI ToUnicode9xME(UINT vkey, UINT scancode, BYTE *keystate, LPWSTR wchars, int wsize, UINT flags);
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ToUnicodeFN SDL_ToUnicode = ToUnicode9xME;
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#endif /* !NO_GETKEYBOARDSTATE */
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#if defined(_WIN32_WCE)
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//AdjustWindowRect is not available under WinCE 2003
#define AdjustWindowRect(a,b,c) (AdjustWindowRectEx((a),(b),(c),0))
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// dynamically load aygshell dll because we want SDL to work on HPC and be300
HINSTANCE aygshell = NULL;
BOOL (WINAPI *SHFullScreen)(HWND hwndRequester, DWORD dwState) = 0;
#define SHFS_SHOWTASKBAR 0x0001
#define SHFS_HIDETASKBAR 0x0002
#define SHFS_SHOWSIPBUTTON 0x0004
#define SHFS_HIDESIPBUTTON 0x0008
#define SHFS_SHOWSTARTICON 0x0010
#define SHFS_HIDESTARTICON 0x0020
static void LoadAygshell(void)
{
if( !aygshell )
aygshell = SDL_LoadObject("aygshell.dll");
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if( (aygshell != 0) && (SHFullScreen == 0) )
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{
SHFullScreen = (int (WINAPI *)(struct HWND__ *,unsigned long)) SDL_LoadFunction(aygshell, "SHFullScreen");
}
}
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/* for gapi landscape mode */
static void GapiTransform(SDL_ScreenOrientation rotate, char hires, Sint16 *x, Sint16 *y) {
Sint16 rotatedX;
Sint16 rotatedY;
if (hires) {
*x = *x * 2;
*y = *y * 2;
}
switch(rotate) {
case SDL_ORIENTATION_UP:
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{
/* this code needs testing on a real device!
So it will be enabled later */
/*
#ifdef _WIN32_WCE
#if _WIN32_WCE >= 420
// test device orientation
// FIXME: do not check every mouse message
DEVMODE settings;
SDL_memset(&settings, 0, sizeof(DEVMODE));
settings.dmSize = sizeof(DEVMODE);
settings.dmFields = DM_DISPLAYORIENTATION;
ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_TEST, NULL);
if( settings.dmOrientation == DMDO_90 )
{
rotatedX = SDL_VideoSurface->h - *x;
rotatedY = *y;
*x = rotatedX;
*y = rotatedY;
}
#endif
#endif */
}
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break;
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// FIXME: Older version used just SDL_VideoSurface->(w, h)
// w and h are "clipped" while x and y are "raw", which caused
// x in former and y in latter case to be clipped in a wrong direction,
// thus offsetting the coordinate on 2 x clip pixels
// (like, 128 for 640 -> 512 clipping).
// We will now try to extract and use raw values.
// The way to do that RIGHT is do (orientation-dependent) clipping before
// doing this transform, but it's hardly possible.
// SEE SDL_mouse.c /ClipOffset to understand these calculations.
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case SDL_ORIENTATION_RIGHT:
if (!SDL_VideoSurface)
break;
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rotatedX = (2 * ((SDL_VideoSurface->offset%SDL_VideoSurface->pitch)/
SDL_VideoSurface->format->BytesPerPixel))
+ SDL_VideoSurface->w - *y;
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rotatedY = *x;
*x = rotatedX;
*y = rotatedY;
break;
case SDL_ORIENTATION_LEFT:
if (!SDL_VideoSurface)
break;
rotatedX = *y;
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rotatedY = (2 * (SDL_VideoSurface->offset/SDL_VideoSurface->pitch))
+ SDL_VideoSurface->h - *x;
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*x = rotatedX;
*y = rotatedY;
break;
}
}
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#endif
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/* JC 14 Mar 2006
This is used all over the place, in the windib driver and in the dx5 driver
So we may as well stick it here instead of having multiple copies scattered
about
*/
void WIN_FlushMessageQueue()
{
MSG msg;
while ( PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) ) {
if ( msg.message == WM_QUIT ) break;
TranslateMessage( &msg );
DispatchMessage( &msg );
}
}
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static void SDL_RestoreGameMode(void)
{
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#ifdef _WIN32_WCE //Under ce we don't minimize, therefore no restore
#ifdef SDL_VIDEO_DRIVER_GAPI
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SDL_VideoDevice *this = current_video;
if(SDL_strcmp(this->name, "gapi") == 0)
{
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if( this->hidden->gapiInfo->suspended )
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{
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this->hidden->gapiInfo->suspended = 0;
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}
}
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#endif
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#else
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ShowWindow(SDL_Window, SW_RESTORE);
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#endif
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#ifndef NO_CHANGEDISPLAYSETTINGS
#ifndef _WIN32_WCE
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ChangeDisplaySettings(&SDL_fullscreen_mode, CDS_FULLSCREEN);
#endif
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#endif /* NO_CHANGEDISPLAYSETTINGS */
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}
static void SDL_RestoreDesktopMode(void)
{
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#ifdef _WIN32_WCE
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#ifdef SDL_VIDEO_DRIVER_GAPI
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SDL_VideoDevice *this = current_video;
if(SDL_strcmp(this->name, "gapi") == 0)
{
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if( !this->hidden->gapiInfo->suspended )
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{
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this->hidden->gapiInfo->suspended = 1;
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}
}
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#endif
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#else
/* WinCE does not have a taskbar, so minimizing is not convenient */
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ShowWindow(SDL_Window, SW_MINIMIZE);
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#endif
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#ifndef NO_CHANGEDISPLAYSETTINGS
#ifndef _WIN32_WCE
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ChangeDisplaySettings(NULL, 0);
#endif
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#endif /* NO_CHANGEDISPLAYSETTINGS */
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}
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#ifdef WM_MOUSELEAVE
/*
Special code to handle mouse leave events - this sucks...
http://support.microsoft.com/support/kb/articles/q183/1/07.asp
TrackMouseEvent() is only available on Win98 and WinNT.
_TrackMouseEvent() is available on Win95, but isn't yet in the mingw32
development environment, and only works on systems that have had IE 3.0
or newer installed on them (which is not the case with the base Win95).
Therefore, we implement our own version of _TrackMouseEvent() which
uses our own implementation if TrackMouseEvent() is not available.
*/
static BOOL (WINAPI *_TrackMouseEvent)(TRACKMOUSEEVENT *ptme) = NULL;
static VOID CALLBACK
TrackMouseTimerProc(HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime)
{
RECT rect;
POINT pt;
GetClientRect(hWnd, &rect);
MapWindowPoints(hWnd, NULL, (LPPOINT)&rect, 2);
GetCursorPos(&pt);
if ( !PtInRect(&rect, pt) || (WindowFromPoint(pt) != hWnd) ) {
if ( !KillTimer(hWnd, idEvent) ) {
/* Error killing the timer! */
}
PostMessage(hWnd, WM_MOUSELEAVE, 0, 0);
}
}
static BOOL WINAPI WIN_TrackMouseEvent(TRACKMOUSEEVENT *ptme)
{
if ( ptme->dwFlags == TME_LEAVE ) {
return SetTimer(ptme->hwndTrack, ptme->dwFlags, 100,
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(TIMERPROC)TrackMouseTimerProc) != 0;
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}
return FALSE;
}
#endif /* WM_MOUSELEAVE */
/* Function to retrieve the current keyboard modifiers */
static void WIN_GetKeyboardState(void)
{
#ifndef NO_GETKEYBOARDSTATE
SDLMod state;
BYTE keyboard[256];
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Uint8 *kstate = SDL_GetKeyState(NULL);
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state = KMOD_NONE;
if ( GetKeyboardState(keyboard) ) {
if ( keyboard[VK_LSHIFT] & 0x80) {
state |= KMOD_LSHIFT;
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kstate[SDLK_LSHIFT] = SDL_PRESSED;
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}
if ( keyboard[VK_RSHIFT] & 0x80) {
state |= KMOD_RSHIFT;
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kstate[SDLK_RSHIFT] = SDL_PRESSED;
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}
if ( keyboard[VK_LCONTROL] & 0x80) {
state |= KMOD_LCTRL;
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kstate[SDLK_LCTRL] = SDL_PRESSED;
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}
if ( keyboard[VK_RCONTROL] & 0x80) {
state |= KMOD_RCTRL;
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kstate[SDLK_RCTRL] = SDL_PRESSED;
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}
if ( keyboard[VK_LMENU] & 0x80) {
state |= KMOD_LALT;
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kstate[SDLK_LALT] = SDL_PRESSED;
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}
if ( keyboard[VK_RMENU] & 0x80) {
state |= KMOD_RALT;
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kstate[SDLK_RALT] = SDL_PRESSED;
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}
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if ( keyboard[VK_NUMLOCK] & 0x01) {
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state |= KMOD_NUM;
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kstate[SDLK_NUMLOCK] = SDL_PRESSED;
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}
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if ( keyboard[VK_CAPITAL] & 0x01) {
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state |= KMOD_CAPS;
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kstate[SDLK_CAPSLOCK] = SDL_PRESSED;
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}
}
SDL_SetModState(state);
#endif /* !NO_GETKEYBOARDSTATE */
}
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/* The main Win32 event handler
DJM: This is no longer static as (DX5/DIB)_CreateWindow needs it
*/
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LRESULT CALLBACK WinMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
SDL_VideoDevice *this = current_video;
static int mouse_pressed = 0;
#ifdef WMMSG_DEBUG
fprintf(stderr, "Received windows message: ");
if ( msg > MAX_WMMSG ) {
fprintf(stderr, "%d", msg);
} else {
fprintf(stderr, "%s", wmtab[msg]);
}
fprintf(stderr, " -- 0x%X, 0x%X\n", wParam, lParam);
#endif
switch (msg) {
case WM_ACTIVATE: {
SDL_VideoDevice *this = current_video;
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BOOL active, minimized;
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Uint8 appstate;
minimized = HIWORD(wParam);
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active = (LOWORD(wParam) != WA_INACTIVE) && !minimized;
if ( active ) {
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/* Gain the following states */
appstate = SDL_APPACTIVE|SDL_APPINPUTFOCUS;
if ( this->input_grab != SDL_GRAB_OFF ) {
WIN_GrabInput(this, SDL_GRAB_ON);
}
if ( !(SDL_GetAppState()&SDL_APPINPUTFOCUS) ) {
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if ( ! DDRAW_FULLSCREEN() ) {
DIB_SwapGamma(this);
}
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if ( WINDIB_FULLSCREEN() ) {
SDL_RestoreGameMode();
}
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}
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#if defined(_WIN32_WCE)
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if ( WINDIB_FULLSCREEN() ) {
LoadAygshell();
if( SHFullScreen )
SHFullScreen(SDL_Window, SHFS_HIDESTARTICON|SHFS_HIDETASKBAR|SHFS_HIDESIPBUTTON);
else
ShowWindow(FindWindow(TEXT("HHTaskBar"),NULL),SW_HIDE);
}
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#endif
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posted = SDL_PrivateAppActive(1, appstate);
WIN_GetKeyboardState();
} else {
/* Lose the following states */
appstate = SDL_APPINPUTFOCUS;
if ( minimized ) {
appstate |= SDL_APPACTIVE;
}
if ( this->input_grab != SDL_GRAB_OFF ) {
WIN_GrabInput(this, SDL_GRAB_OFF);
}
if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
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if ( ! DDRAW_FULLSCREEN() ) {
DIB_SwapGamma(this);
}
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if ( WINDIB_FULLSCREEN() ) {
SDL_RestoreDesktopMode();
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#if defined(_WIN32_WCE)
LoadAygshell();
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if( SHFullScreen )
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SHFullScreen(SDL_Window, SHFS_SHOWSTARTICON|SHFS_SHOWTASKBAR|SHFS_SHOWSIPBUTTON);
else
ShowWindow(FindWindow(TEXT("HHTaskBar"),NULL),SW_SHOW);
#endif
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}
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}
posted = SDL_PrivateAppActive(0, appstate);
}
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WIN_Activate(this, active, minimized);
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return(0);
}
break;
case WM_MOUSEMOVE: {
#ifdef WM_MOUSELEAVE
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/* No need to handle SDL_APPMOUSEFOCUS when fullscreen */
if ( SDL_VideoSurface && !FULLSCREEN() ) {
/* mouse has entered the window */
if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
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TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = SDL_Window;
_TrackMouseEvent(&tme);
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#endif /* WM_MOUSELEAVE */
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/* Mouse motion is handled in DIB_PumpEvents or
* DX5_PumpEvents, depending on the video driver
* in use */
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posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
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}
return(0);
#ifdef WM_MOUSELEAVE
case WM_MOUSELEAVE: {
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/* No need to handle SDL_APPMOUSEFOCUS when fullscreen */
if ( SDL_VideoSurface && !FULLSCREEN() ) {
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/* mouse has left the window */
/* or */
/* Elvis has left the building! */
posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
}
}
return(0);
#endif /* WM_MOUSELEAVE */
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_RBUTTONDOWN:
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case WM_RBUTTONUP:
case WM_XBUTTONDOWN:
case WM_XBUTTONUP: {
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/* Mouse is handled by DirectInput when fullscreen */
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if ( SDL_VideoSurface && ! DINPUT() ) {
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WORD xbuttonval = 0;
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Sint16 x, y;
Uint8 button, state;
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/* DJM:
We want the SDL window to take focus so that
it acts like a normal windows "component"
(e.g. gains keyboard focus on a mouse click).
*/
SetFocus(SDL_Window);
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/* Figure out which button to use */
switch (msg) {
case WM_LBUTTONDOWN:
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button = SDL_BUTTON_LEFT;
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state = SDL_PRESSED;
break;
case WM_LBUTTONUP:
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button = SDL_BUTTON_LEFT;
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state = SDL_RELEASED;
break;
case WM_MBUTTONDOWN:
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button = SDL_BUTTON_MIDDLE;
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state = SDL_PRESSED;
break;
case WM_MBUTTONUP:
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button = SDL_BUTTON_MIDDLE;
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state = SDL_RELEASED;
break;
case WM_RBUTTONDOWN:
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button = SDL_BUTTON_RIGHT;
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state = SDL_PRESSED;
break;
case WM_RBUTTONUP:
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button = SDL_BUTTON_RIGHT;
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state = SDL_RELEASED;
break;
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case WM_XBUTTONDOWN:
xbuttonval = GET_XBUTTON_WPARAM(wParam);
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button = SDL_BUTTON_X1 + xbuttonval - 1;
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state = SDL_PRESSED;
break;
case WM_XBUTTONUP:
xbuttonval = GET_XBUTTON_WPARAM(wParam);
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button = SDL_BUTTON_X1 + xbuttonval - 1;
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state = SDL_RELEASED;
break;
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default:
/* Eh? Unknown button? */
return(0);
}
if ( state == SDL_PRESSED ) {
/* Grab mouse so we get up events */
if ( ++mouse_pressed > 0 ) {
SetCapture(hwnd);
}
} else {
/* Release mouse after all up events */
if ( --mouse_pressed <= 0 ) {
ReleaseCapture();
mouse_pressed = 0;
}
}
posted = SDL_PrivateMouseButton(
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state, button, 0, 0);
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/*
* MSDN says:
* "Unlike the WM_LBUTTONUP, WM_MBUTTONUP, and WM_RBUTTONUP
* messages, an application should return TRUE from [an
* XBUTTON message] if it processes it. Doing so will allow
* software that simulates this message on Microsoft Windows
* systems earlier than Windows 2000 to determine whether
* the window procedure processed the message or called
* DefWindowProc to process it.
*/
if (xbuttonval > 0)
return(TRUE);
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}
}
return(0);
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#if (_WIN32_WINNT >= 0x0400) || (_WIN32_WINDOWS > 0x0400)
case WM_MOUSEWHEEL:
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if ( SDL_VideoSurface && ! DINPUT() ) {
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int move = (short)HIWORD(wParam);
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if ( move ) {
Uint8 button;
if ( move > 0 )
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button = SDL_BUTTON_WHEELUP;
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else
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button = SDL_BUTTON_WHEELDOWN;
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posted = SDL_PrivateMouseButton(
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SDL_PRESSED, button, 0, 0);
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posted |= SDL_PrivateMouseButton(
SDL_RELEASED, button, 0, 0);
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}
}
return(0);
#endif
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#ifdef WM_GETMINMAXINFO
/* This message is sent as a way for us to "check" the values
* of a position change. If we don't like it, we can adjust
* the values before they are changed.
*/
case WM_GETMINMAXINFO: {
MINMAXINFO *info;
RECT size;
int x, y;
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int style;
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int width;
int height;
/* We don't want to clobber an internal resize */
if ( SDL_resizing )
return(0);
/* We allow resizing with the SDL_RESIZABLE flag */
if ( SDL_PublicSurface &&
(SDL_PublicSurface->flags & SDL_RESIZABLE) ) {
return(0);
}
/* Get the current position of our window */
GetWindowRect(SDL_Window, &size);
x = size.left;
y = size.top;
/* Calculate current width and height of our window */
size.top = 0;
size.left = 0;
if ( SDL_PublicSurface != NULL ) {
size.bottom = SDL_PublicSurface->h;
size.right = SDL_PublicSurface->w;
} else {
size.bottom = 0;
size.right = 0;
}
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/* DJM - according to the docs for GetMenu(), the
return value is undefined if hwnd is a child window.
Aparently it's too difficult for MS to check
inside their function, so I have to do it here.
*/
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style = GetWindowLong(hwnd, GWL_STYLE);
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AdjustWindowRect(
&size,
style,
style & WS_CHILDWINDOW ? FALSE
: GetMenu(hwnd) != NULL);
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width = size.right - size.left;
height = size.bottom - size.top;
/* Fix our size to the current size */
info = (MINMAXINFO *)lParam;
info->ptMaxSize.x = width;
info->ptMaxSize.y = height;
info->ptMaxPosition.x = x;
info->ptMaxPosition.y = y;
info->ptMinTrackSize.x = width;
info->ptMinTrackSize.y = height;
info->ptMaxTrackSize.x = width;
info->ptMaxTrackSize.y = height;
}
return(0);
#endif /* WM_GETMINMAXINFO */
660
case WM_WINDOWPOSCHANGED: {
661
SDL_VideoDevice *this = current_video;
662
int w, h;
663
664
GetClientRect(SDL_Window, &SDL_bounds);
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666
ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds);
ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds+1);
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668
669
670
671
672
if ( !SDL_resizing && !IsZoomed(SDL_Window) &&
SDL_PublicSurface &&
!(SDL_PublicSurface->flags & SDL_FULLSCREEN) ) {
SDL_windowX = SDL_bounds.left;
SDL_windowY = SDL_bounds.top;
}
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674
w = SDL_bounds.right-SDL_bounds.left;
h = SDL_bounds.bottom-SDL_bounds.top;
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676
677
if ( this->input_grab != SDL_GRAB_OFF ) {
ClipCursor(&SDL_bounds);
}
678
if ( SDL_PublicSurface &&
679
(SDL_PublicSurface->flags & SDL_RESIZABLE) ) {
680
SDL_PrivateResize(w, h);
681
682
683
684
685
686
687
688
689
690
691
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693
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706
707
708
709
710
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714
715
716
717
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723
}
}
break;
/* We need to set the cursor */
case WM_SETCURSOR: {
Uint16 hittest;
hittest = LOWORD(lParam);
if ( hittest == HTCLIENT ) {
SetCursor(SDL_hcursor);
return(TRUE);
}
}
break;
/* We are about to get palette focus! */
case WM_QUERYNEWPALETTE: {
WIN_RealizePalette(current_video);
return(TRUE);
}
break;
/* Another application changed the palette */
case WM_PALETTECHANGED: {
WIN_PaletteChanged(current_video, (HWND)wParam);
}
break;
/* We were occluded, refresh our display */
case WM_PAINT: {
HDC hdc;
PAINTSTRUCT ps;
hdc = BeginPaint(SDL_Window, &ps);
if ( current_video->screen &&
!(current_video->screen->flags & SDL_OPENGL) ) {
WIN_WinPAINT(current_video, hdc);
}
EndPaint(SDL_Window, &ps);
}
return(0);
724
/* DJM: Send an expose event in this case */
725
case WM_ERASEBKGND: {
726
posted = SDL_PrivateExpose();
727
}
728
return(0);
729
730
731
732
733
734
735
736
737
738
739
740
case WM_CLOSE: {
if ( (posted = SDL_PrivateQuit()) )
PostQuitMessage(0);
}
return(0);
case WM_DESTROY: {
PostQuitMessage(0);
}
return(0);
741
#ifndef NO_GETKEYBOARDSTATE
742
743
744
745
case WM_INPUTLANGCHANGE: {
codepage = GetCodePage();
}
return(TRUE);
746
#endif
747
748
749
750
751
752
753
754
755
756
757
758
759
default: {
/* Special handling by the video driver */
if (HandleMessage) {
return(HandleMessage(current_video,
hwnd, msg, wParam, lParam));
}
}
break;
}
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
760
/* Allow the application handle to be stored and retrieved later */
761
static void *SDL_handle = NULL;
762
763
void SDL_SetModuleHandle(void *handle)
764
765
766
{
SDL_handle = handle;
}
767
void *SDL_GetModuleHandle(void)
768
769
770
771
772
773
774
775
776
777
778
{
void *handle;
if ( SDL_handle ) {
handle = SDL_handle;
} else {
handle = GetModuleHandle(NULL);
}
return(handle);
}
779
/* This allows the SDL_WINDOWID hack */
780
BOOL SDL_windowid = FALSE;
781
782
783
static int app_registered = 0;
784
/* Register the class for this application -- exported for winmain.c */
785
int SDL_RegisterApp(char *name, Uint32 style, void *hInst)
786
787
788
789
790
791
792
{
WNDCLASS class;
#ifdef WM_MOUSELEAVE
HMODULE handle;
#endif
/* Only do this once... */
793
if ( app_registered ) {
794
++app_registered;
795
796
797
return(0);
}
798
799
800
801
802
803
804
#ifndef CS_BYTEALIGNCLIENT
#define CS_BYTEALIGNCLIENT 0
#endif
if ( ! name && ! SDL_Appname ) {
name = "SDL_app";
SDL_Appstyle = CS_BYTEALIGNCLIENT;
SDL_Instance = hInst ? hInst : SDL_GetModuleHandle();
805
806
}
807
if ( name ) {
808
#ifdef _WIN32_WCE
809
/* WinCE uses the UNICODE version */
810
SDL_Appname = SDL_iconv_utf8_ucs2(name);
811
#else
812
SDL_Appname = SDL_iconv_utf8_locale(name);
813
#endif /* _WIN32_WCE */
814
815
816
817
818
819
820
821
SDL_Appstyle = style;
SDL_Instance = hInst ? hInst : SDL_GetModuleHandle();
}
/* Register the application class */
class.hCursor = NULL;
class.hIcon = LoadImage(SDL_Instance, SDL_Appname,
IMAGE_ICON,
822
823
824
0, 0, LR_DEFAULTCOLOR);
class.lpszMenuName = NULL;
class.lpszClassName = SDL_Appname;
825
class.hbrBackground = NULL;
826
827
class.hInstance = SDL_Instance;
class.style = SDL_Appstyle;
828
#if SDL_VIDEO_OPENGL
829
830
831
832
833
834
835
836
837
838
839
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842
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844
845
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848
849
850
class.style |= CS_OWNDC;
#endif
class.lpfnWndProc = WinMessage;
class.cbWndExtra = 0;
class.cbClsExtra = 0;
if ( ! RegisterClass(&class) ) {
SDL_SetError("Couldn't register application class");
return(-1);
}
#ifdef WM_MOUSELEAVE
/* Get the version of TrackMouseEvent() we use */
_TrackMouseEvent = NULL;
handle = GetModuleHandle("USER32.DLL");
if ( handle ) {
_TrackMouseEvent = (BOOL (WINAPI *)(TRACKMOUSEEVENT *))GetProcAddress(handle, "TrackMouseEvent");
}
if ( _TrackMouseEvent == NULL ) {
_TrackMouseEvent = WIN_TrackMouseEvent;
}
#endif /* WM_MOUSELEAVE */
851
#ifndef NO_GETKEYBOARDSTATE
852
853
854
/* Initialise variables for SDL_ToUnicode() */
codepage = GetCodePage();
SDL_ToUnicode = Is9xME() ? ToUnicode9xME : ToUnicode;
855
#endif
856
857
app_registered = 1;
858
859
860
return(0);
}
861
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
862
void SDL_UnregisterApp()
863
864
865
866
{
WNDCLASS class;
/* SDL_RegisterApp might not have been called before */
867
868
869
870
871
if ( !app_registered ) {
return;
}
--app_registered;
if ( app_registered == 0 ) {
872
873
/* Check for any registered window classes. */
if ( GetClassInfo(SDL_Instance, SDL_Appname, &class) ) {
874
875
UnregisterClass(SDL_Appname, SDL_Instance);
}
876
877
SDL_free(SDL_Appname);
SDL_Appname = NULL;
878
879
880
}
}
881
#ifndef NO_GETKEYBOARDSTATE
882
883
884
885
886
887
/* JFP: Implementation of ToUnicode() that works on 9x/ME/2K/XP */
static int Is9xME()
{
OSVERSIONINFO info;
888
SDL_memset(&info, 0, sizeof(info));
889
890
891
892
893
894
895
896
897
898
899
900
901
902
info.dwOSVersionInfoSize = sizeof(info);
if (!GetVersionEx(&info)) {
return 0;
}
return (info.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS);
}
static int GetCodePage()
{
char buff[8];
int lcid = MAKELCID(LOWORD(GetKeyboardLayout(0)), SORT_DEFAULT);
int cp = GetACP();
if (GetLocaleInfo(lcid, LOCALE_IDEFAULTANSICODEPAGE, buff, sizeof(buff))) {
903
cp = SDL_atoi(buff);
904
905
906
907
908
909
910
911
912
913
914
915
916
917
}
return cp;
}
static int WINAPI ToUnicode9xME(UINT vkey, UINT scancode, PBYTE keystate, LPWSTR wchars, int wsize, UINT flags)
{
BYTE chars[2];
if (ToAsciiEx(vkey, scancode, keystate, (WORD*)chars, 0, GetKeyboardLayout(0)) == 1) {
return MultiByteToWideChar(codepage, 0, chars, 1, wchars, wsize);
}
return 0;
}
918
#endif /* !NO_GETKEYBOARDSTATE */