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SDL_sysevents.c
924 lines (828 loc) · 23 KB
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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,
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
#ifdef _WIN32_WCE
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#include "../gapi/SDL_gapivideo.h"
#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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/* 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_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)
// 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;
case SDL_ORIENTATION_RIGHT:
if (!SDL_VideoSurface)
break;
rotatedX = SDL_VideoSurface->w - *y;
rotatedY = *x;
*x = rotatedX;
*y = rotatedY;
break;
case SDL_ORIENTATION_LEFT:
if (!SDL_VideoSurface)
break;
rotatedX = *y;
rotatedY = SDL_VideoSurface->h - *x;
*x = rotatedX;
*y = rotatedY;
break;
}
}
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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
SDL_VideoDevice *this = current_video;
if(SDL_strcmp(this->name, "gapi") == 0)
{
if( this->hidden->suspended )
{
this->hidden->suspended = 0;
}
}
#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
SDL_VideoDevice *this = current_video;
if(SDL_strcmp(this->name, "gapi") == 0)
{
if( !this->hidden->suspended )
{
this->hidden->suspended = 1;
}
}
#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;
static int in_window = 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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Uint8 appstate;
minimized = HIWORD(wParam);
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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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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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}
posted = SDL_PrivateAppActive(0, appstate);
}
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return(0);
}
break;
case WM_MOUSEMOVE: {
/* Mouse is handled by DirectInput when fullscreen */
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if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
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Sint16 x, y;
/* mouse has entered the window */
if ( ! in_window ) {
#ifdef WM_MOUSELEAVE
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = SDL_Window;
_TrackMouseEvent(&tme);
#endif /* WM_MOUSELEAVE */
in_window = TRUE;
posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
}
/* mouse has moved within the window */
x = LOWORD(lParam);
y = HIWORD(lParam);
if ( mouse_relative ) {
POINT center;
center.x = (SDL_VideoSurface->w/2);
center.y = (SDL_VideoSurface->h/2);
x -= (Sint16)center.x;
y -= (Sint16)center.y;
if ( x || y ) {
ClientToScreen(SDL_Window, ¢er);
SetCursorPos(center.x, center.y);
posted = SDL_PrivateMouseMotion(0, 1, x, y);
}
} else {
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#ifdef _WIN32_WCE
if (SDL_VideoSurface)
GapiTransform(this->hidden->userOrientation, this->hidden->hiresFix, &x, &y);
#endif
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posted = SDL_PrivateMouseMotion(0, 0, x, y);
}
}
}
return(0);
#ifdef WM_MOUSELEAVE
case WM_MOUSELEAVE: {
/* Mouse is handled by DirectInput when fullscreen */
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if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
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/* mouse has left the window */
/* or */
/* Elvis has left the building! */
posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
}
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in_window = FALSE;
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}
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_FULLSCREEN() ) {
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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_WHEELDOWN + xbuttonval;
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state = SDL_PRESSED;
break;
case WM_XBUTTONUP:
xbuttonval = GET_XBUTTON_WPARAM(wParam);
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button = SDL_BUTTON_WHEELDOWN + xbuttonval;
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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;
}
}
if ( mouse_relative ) {
/* RJR: March 28, 2000
report internal mouse position if in relative mode */
x = 0; y = 0;
} else {
x = (Sint16)LOWORD(lParam);
y = (Sint16)HIWORD(lParam);
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#ifdef _WIN32_WCE
if (SDL_VideoSurface)
GapiTransform(this->hidden->userOrientation, this->hidden->hiresFix, &x, &y);
#endif
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}
posted = SDL_PrivateMouseButton(
state, button, x, y);
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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:
if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
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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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 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 */
666
case WM_WINDOWPOSCHANGED: {
667
SDL_VideoDevice *this = current_video;
669
670
GetClientRect(SDL_Window, &SDL_bounds);
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672
ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds);
ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds+1);
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674
675
676
677
678
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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680
w = SDL_bounds.right-SDL_bounds.left;
h = SDL_bounds.bottom-SDL_bounds.top;
681
682
683
if ( this->input_grab != SDL_GRAB_OFF ) {
ClipCursor(&SDL_bounds);
}
684
if ( SDL_PublicSurface &&
685
(SDL_PublicSurface->flags & SDL_RESIZABLE) ) {
686
SDL_PrivateResize(w, h);
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688
689
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692
693
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700
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702
703
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705
706
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713
714
715
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717
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719
720
721
722
723
724
725
726
727
728
729
}
}
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);
730
/* DJM: Send an expose event in this case */
731
case WM_ERASEBKGND: {
732
posted = SDL_PrivateExpose();
733
}
735
736
737
738
739
740
741
742
743
744
745
746
case WM_CLOSE: {
if ( (posted = SDL_PrivateQuit()) )
PostQuitMessage(0);
}
return(0);
case WM_DESTROY: {
PostQuitMessage(0);
}
return(0);
747
#ifndef NO_GETKEYBOARDSTATE
748
749
750
751
case WM_INPUTLANGCHANGE: {
codepage = GetCodePage();
}
return(TRUE);
752
#endif
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756
757
758
759
760
761
762
763
764
765
default: {
/* Special handling by the video driver */
if (HandleMessage) {
return(HandleMessage(current_video,
hwnd, msg, wParam, lParam));
}
}
break;
}
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
766
/* Allow the application handle to be stored and retrieved later */
767
static void *SDL_handle = NULL;
769
void SDL_SetModuleHandle(void *handle)
770
771
772
{
SDL_handle = handle;
}
773
void *SDL_GetModuleHandle(void)
774
775
776
777
778
779
780
781
782
783
784
{
void *handle;
if ( SDL_handle ) {
handle = SDL_handle;
} else {
handle = GetModuleHandle(NULL);
}
return(handle);
}
785
/* This allows the SDL_WINDOWID hack */
786
BOOL SDL_windowid = FALSE;
788
789
static int app_registered = 0;
790
/* Register the class for this application -- exported for winmain.c */
791
int SDL_RegisterApp(char *name, Uint32 style, void *hInst)
792
793
794
795
796
797
798
{
WNDCLASS class;
#ifdef WM_MOUSELEAVE
HMODULE handle;
#endif
/* Only do this once... */
799
if ( app_registered ) {
801
802
803
return(0);
}
804
805
806
807
808
809
810
#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();
811
812
}
813
if ( name ) {
814
#ifdef _WIN32_WCE
815
/* WinCE uses the UNICODE version */
817
#else
818
SDL_Appname = SDL_iconv_utf8_locale(name);
819
#endif /* _WIN32_WCE */
820
821
822
823
824
825
826
827
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,
828
829
830
0, 0, LR_DEFAULTCOLOR);
class.lpszMenuName = NULL;
class.lpszClassName = SDL_Appname;
831
class.hbrBackground = NULL;
832
833
class.hInstance = SDL_Instance;
class.style = SDL_Appstyle;
834
#if SDL_VIDEO_OPENGL
835
836
837
838
839
840
841
842
843
844
845
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847
848
849
850
851
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853
854
855
856
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 */
857
#ifndef NO_GETKEYBOARDSTATE
858
859
860
/* Initialise variables for SDL_ToUnicode() */
codepage = GetCodePage();
SDL_ToUnicode = Is9xME() ? ToUnicode9xME : ToUnicode;
861
#endif
863
app_registered = 1;
864
865
866
return(0);
}
867
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
868
void SDL_UnregisterApp()
869
870
871
872
{
WNDCLASS class;
/* SDL_RegisterApp might not have been called before */
873
874
875
876
877
if ( !app_registered ) {
return;
}
--app_registered;
if ( app_registered == 0 ) {
878
879
/* Check for any registered window classes. */
if ( GetClassInfo(SDL_Instance, SDL_Appname, &class) ) {
880
881
UnregisterClass(SDL_Appname, SDL_Instance);
}
887
#ifndef NO_GETKEYBOARDSTATE
888
889
890
891
892
893
/* JFP: Implementation of ToUnicode() that works on 9x/ME/2K/XP */
static int Is9xME()
{
OSVERSIONINFO info;
894
SDL_memset(&info, 0, sizeof(info));
895
896
897
898
899
900
901
902
903
904
905
906
907
908
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))) {
909
cp = SDL_atoi(buff);
910
911
912
913
914
915
916
917
918
919
920
921
922
923
}
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;
}
924
#endif /* !NO_GETKEYBOARDSTATE */