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SDL_sysevents.c
877 lines (781 loc) · 21.5 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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#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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#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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#endif
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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;
BOOL minimized;
Uint8 appstate;
minimized = HIWORD(wParam);
if ( !minimized && (LOWORD(wParam) != WA_INACTIVE) ) {
/* 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)
if ( WINDIB_FULLSCREEN() )
{
LoadAygshell();
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if( SHFullScreen )
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SHFullScreen(SDL_Window, SHFS_HIDESTARTICON|SHFS_HIDETASKBAR|SHFS_HIDESIPBUTTON);
else
ShowWindow(FindWindow(TEXT("HHTaskBar"),NULL),SW_HIDE);
}
#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);
}
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:
case WM_RBUTTONUP: {
/* Mouse is handled by DirectInput when fullscreen */
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if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
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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;
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);
}
}
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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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 */
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case WM_WINDOWPOSCHANGED: {
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SDL_VideoDevice *this = current_video;
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int w, h;
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GetClientRect(SDL_Window, &SDL_bounds);
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ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds);
ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds+1);
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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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w = SDL_bounds.right-SDL_bounds.left;
h = SDL_bounds.bottom-SDL_bounds.top;
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if ( this->input_grab != SDL_GRAB_OFF ) {
ClipCursor(&SDL_bounds);
}
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if ( SDL_PublicSurface &&
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(SDL_PublicSurface->flags & SDL_RESIZABLE) ) {
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SDL_PrivateResize(w, h);
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668
669
670
671
672
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678
}
}
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);
679
/* DJM: Send an expose event in this case */
680
case WM_ERASEBKGND: {
681
posted = SDL_PrivateExpose();
682
}
683
return(0);
684
685
686
687
688
689
690
691
692
693
694
695
case WM_CLOSE: {
if ( (posted = SDL_PrivateQuit()) )
PostQuitMessage(0);
}
return(0);
case WM_DESTROY: {
PostQuitMessage(0);
}
return(0);
696
#ifndef NO_GETKEYBOARDSTATE
697
698
699
700
case WM_INPUTLANGCHANGE: {
codepage = GetCodePage();
}
return(TRUE);
701
#endif
702
703
704
705
706
707
708
709
710
711
712
713
714
default: {
/* Special handling by the video driver */
if (HandleMessage) {
return(HandleMessage(current_video,
hwnd, msg, wParam, lParam));
}
}
break;
}
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
715
/* Allow the application handle to be stored and retrieved later */
716
static void *SDL_handle = NULL;
717
718
void SDL_SetModuleHandle(void *handle)
719
720
721
{
SDL_handle = handle;
}
722
void *SDL_GetModuleHandle(void)
723
724
725
726
727
728
729
730
731
732
733
{
void *handle;
if ( SDL_handle ) {
handle = SDL_handle;
} else {
handle = GetModuleHandle(NULL);
}
return(handle);
}
734
/* This allows the SDL_WINDOWID hack */
735
BOOL SDL_windowid = FALSE;
736
737
738
static int app_registered = 0;
739
/* Register the class for this application -- exported for winmain.c */
740
int SDL_RegisterApp(char *name, Uint32 style, void *hInst)
741
742
743
744
745
746
747
{
WNDCLASS class;
#ifdef WM_MOUSELEAVE
HMODULE handle;
#endif
/* Only do this once... */
748
if ( app_registered ) {
749
++app_registered;
750
751
752
return(0);
}
753
754
755
756
757
758
759
#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();
760
761
}
762
if ( name ) {
763
#ifdef _WIN32_WCE
764
/* WinCE uses the UNICODE version */
765
size_t nLen = SDL_strlen(name)+1;
766
SDL_Appname = SDL_malloc(nLen*2);
767
MultiByteToWideChar(CP_ACP, 0, name, -1, SDL_Appname, nLen);
768
#else
769
size_t nLen = SDL_strlen(name)+1;
770
SDL_Appname = SDL_malloc(nLen);
771
SDL_strlcpy(SDL_Appname, name, nLen);
772
#endif /* _WIN32_WCE */
773
774
775
776
777
778
779
780
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,
781
782
783
0, 0, LR_DEFAULTCOLOR);
class.lpszMenuName = NULL;
class.lpszClassName = SDL_Appname;
784
class.hbrBackground = NULL;
785
786
class.hInstance = SDL_Instance;
class.style = SDL_Appstyle;
787
#if SDL_VIDEO_OPENGL
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
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 */
810
#ifndef NO_GETKEYBOARDSTATE
811
812
813
/* Initialise variables for SDL_ToUnicode() */
codepage = GetCodePage();
SDL_ToUnicode = Is9xME() ? ToUnicode9xME : ToUnicode;
814
#endif
815
816
app_registered = 1;
817
818
819
return(0);
}
820
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
821
void SDL_UnregisterApp()
822
823
824
825
{
WNDCLASS class;
/* SDL_RegisterApp might not have been called before */
826
827
828
829
830
if ( !app_registered ) {
return;
}
--app_registered;
if ( app_registered == 0 ) {
831
832
/* Check for any registered window classes. */
if ( GetClassInfo(SDL_Instance, SDL_Appname, &class) ) {
833
834
UnregisterClass(SDL_Appname, SDL_Instance);
}
835
836
SDL_free(SDL_Appname);
SDL_Appname = NULL;
837
838
839
}
}
840
#ifndef NO_GETKEYBOARDSTATE
841
842
843
844
845
846
/* JFP: Implementation of ToUnicode() that works on 9x/ME/2K/XP */
static int Is9xME()
{
OSVERSIONINFO info;
847
SDL_memset(&info, 0, sizeof(info));
848
849
850
851
852
853
854
855
856
857
858
859
860
861
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))) {
862
cp = SDL_atoi(buff);
863
864
865
866
867
868
869
870
871
872
873
874
875
876
}
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;
}
877
#endif /* !NO_GETKEYBOARDSTATE */