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SDL_win32window.c
683 lines (595 loc) · 18.4 KB
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
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
Lesser General Public License for more details.
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
Sam Lantinga
slouken@libsdl.org
*/
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/* we need to define it, so that raw input is included */
#if (_WIN32_WINNT < 0x0501)
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
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#include "SDL_config.h"
#include "../SDL_sysvideo.h"
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#include "../SDL_pixels_c.h"
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#include "../../events/SDL_keyboard_c.h"
#include "SDL_win32video.h"
/* This is included after SDL_win32video.h, which includes windows.h */
#include "SDL_syswm.h"
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#define SHFS_SHOWTASKBAR 0x0001
#define SHFS_HIDETASKBAR 0x0002
#define SHFS_SHOWSIPBUTTON 0x0004
#define SHFS_HIDESIPBUTTON 0x0008
#define SHFS_SHOWSTARTICON 0x0010
#define SHFS_HIDESTARTICON 0x0020
#ifdef _WIN32_WCE
// dynamically load aygshell dll because we want SDL to work on HPC and be300
int aygshell_loaded = 0;
BOOL(WINAPI * SHFullScreen) (HWND hwndRequester, DWORD dwState) = 0;
static BOOL
CE_SHFullScreen(HWND hwndRequester, DWORD dwState)
{
if (SHFullScreen == 0 && aygshell_loaded == 0) {
aygshell_loaded = 0;
void *lib = SDL_LoadObject("aygshell.dll");
if (lib) {
SHFullScreen =
(BOOL(WINAPI *) (HWND, DWORD)) SDL_LoadFunction(lib,
"SHFullScreen");
}
}
if (SHFullScreen) {
SHFullScreen(hwndRequester, dwState);
//printf("SHFullscreen(%i)\n",dwState);
}
}
#endif
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/* Fake window to help with DirectInput events. */
HWND SDL_HelperWindow = NULL;
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static WCHAR *SDL_HelperWindowClassName = TEXT("SDLHelperWindowInputCatcher");
static WCHAR *SDL_HelperWindowName = TEXT("SDLHelperWindowInputMsgWindow");
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static ATOM SDL_HelperWindowClass = 0;
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static int
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SetupWindowData(_THIS, SDL_Window * window, HWND hwnd, SDL_bool created)
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{
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SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
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SDL_VideoDisplay *display = window->display;
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SDL_WindowData *data;
/* Allocate the window data */
data = (SDL_WindowData *) SDL_malloc(sizeof(*data));
if (!data) {
SDL_OutOfMemory();
return -1;
}
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data->window = window;
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data->hwnd = hwnd;
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data->hdc = GetDC(hwnd);
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data->created = created;
data->mouse_pressed = SDL_FALSE;
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data->videodata = videodata;
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/* Associate the data with the window */
if (!SetProp(hwnd, TEXT("SDL_WindowData"), data)) {
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ReleaseDC(hwnd, data->hdc);
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SDL_free(data);
WIN_SetError("SetProp() failed");
return -1;
}
/* Set up the window proc function */
data->wndproc = (WNDPROC) GetWindowLongPtr(hwnd, GWLP_WNDPROC);
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if (data->wndproc == WIN_WindowProc) {
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data->wndproc = NULL;
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}
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else {
SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR) WIN_WindowProc);
}
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/* Fill in the SDL window with the window data */
{
POINT point;
point.x = 0;
point.y = 0;
if (ClientToScreen(hwnd, &point)) {
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SDL_Rect bounds;
WIN_GetDisplayBounds(_this, display, &bounds);
window->x = point.x - bounds.x;
window->y = point.y - bounds.y;
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}
}
{
RECT rect;
if (GetClientRect(hwnd, &rect)) {
window->w = rect.right;
window->h = rect.bottom;
}
}
{
DWORD style = GetWindowLong(hwnd, GWL_STYLE);
if (style & WS_VISIBLE) {
window->flags |= SDL_WINDOW_SHOWN;
} else {
window->flags &= ~SDL_WINDOW_SHOWN;
}
if (style & (WS_BORDER | WS_THICKFRAME)) {
window->flags &= ~SDL_WINDOW_BORDERLESS;
} else {
window->flags |= SDL_WINDOW_BORDERLESS;
}
if (style & WS_THICKFRAME) {
window->flags |= SDL_WINDOW_RESIZABLE;
} else {
window->flags &= ~SDL_WINDOW_RESIZABLE;
}
if (style & WS_MAXIMIZE) {
window->flags |= SDL_WINDOW_MAXIMIZED;
} else {
window->flags &= ~SDL_WINDOW_MAXIMIZED;
}
if (style & WS_MINIMIZE) {
window->flags |= SDL_WINDOW_MINIMIZED;
} else {
window->flags &= ~SDL_WINDOW_MINIMIZED;
}
}
if (GetFocus() == hwnd) {
window->flags |= SDL_WINDOW_INPUT_FOCUS;
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SDL_SetKeyboardFocus(data->window);
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if (window->flags & SDL_WINDOW_INPUT_GRABBED) {
RECT rect;
GetClientRect(hwnd, &rect);
ClientToScreen(hwnd, (LPPOINT) & rect);
ClientToScreen(hwnd, (LPPOINT) & rect + 1);
ClipCursor(&rect);
}
}
/* All done! */
window->driverdata = data;
return 0;
}
int
WIN_CreateWindow(_THIS, SDL_Window * window)
{
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SDL_VideoDisplay *display = window->display;
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HWND hwnd;
HWND top;
RECT rect;
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SDL_Rect bounds;
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DWORD style = (WS_CLIPSIBLINGS | WS_CLIPCHILDREN);
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int x, y;
int w, h;
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if (window->flags & (SDL_WINDOW_BORDERLESS | SDL_WINDOW_FULLSCREEN)) {
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style |= WS_POPUP;
} else {
style |= (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX);
}
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if ((window->flags & SDL_WINDOW_RESIZABLE)
&& !(window->flags & SDL_WINDOW_FULLSCREEN)) {
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style |= (WS_THICKFRAME | WS_MAXIMIZEBOX);
}
/* Figure out what the window area will be */
if (window->flags & SDL_WINDOW_FULLSCREEN) {
top = HWND_TOPMOST;
} else {
top = HWND_NOTOPMOST;
}
rect.left = 0;
rect.top = 0;
rect.right = window->w;
rect.bottom = window->h;
AdjustWindowRectEx(&rect, style, FALSE, 0);
w = (rect.right - rect.left);
h = (rect.bottom - rect.top);
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WIN_GetDisplayBounds(_this, display, &bounds);
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if ((window->flags & SDL_WINDOW_FULLSCREEN)
|| window->x == SDL_WINDOWPOS_CENTERED) {
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x = bounds.x + (bounds.w - window->w) / 2;
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} else if (window->x == SDL_WINDOWPOS_UNDEFINED) {
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if (bounds.x == 0) {
x = CW_USEDEFAULT;
} else {
x = bounds.x;
}
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} else {
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x = bounds.x + window->x + rect.left;
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}
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if ((window->flags & SDL_WINDOW_FULLSCREEN)
|| window->y == SDL_WINDOWPOS_CENTERED) {
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y = bounds.y + (bounds.h - window->h) / 2;
} else if (window->x == SDL_WINDOWPOS_UNDEFINED) {
if (bounds.x == 0) {
y = CW_USEDEFAULT;
} else {
y = bounds.y;
}
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} else {
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y = bounds.y + window->y + rect.top;
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}
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hwnd =
CreateWindow(SDL_Appname, TEXT(""), style, x, y, w, h, NULL, NULL,
SDL_Instance, NULL);
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if (!hwnd) {
WIN_SetError("Couldn't create window");
return -1;
}
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WIN_PumpEvents(_this);
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if (SetupWindowData(_this, window, hwnd, SDL_TRUE) < 0) {
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DestroyWindow(hwnd);
return -1;
}
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#ifdef SDL_VIDEO_OPENGL_WGL
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if (window->flags & SDL_WINDOW_OPENGL) {
if (WIN_GL_SetupWindow(_this, window) < 0) {
WIN_DestroyWindow(_this, window);
return -1;
}
}
#endif
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return 0;
}
int
WIN_CreateWindowFrom(_THIS, SDL_Window * window, const void *data)
{
HWND hwnd = (HWND) data;
LPTSTR title;
int titleLen;
/* Query the title from the existing window */
titleLen = GetWindowTextLength(hwnd);
title = SDL_stack_alloc(TCHAR, titleLen + 1);
if (title) {
titleLen = GetWindowText(hwnd, title, titleLen);
} else {
titleLen = 0;
}
if (titleLen > 0) {
window->title = WIN_StringToUTF8(title);
}
if (title) {
SDL_stack_free(title);
}
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if (SetupWindowData(_this, window, hwnd, SDL_FALSE) < 0) {
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return -1;
}
return 0;
}
void
WIN_SetWindowTitle(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
LPTSTR title;
if (window->title) {
title = WIN_UTF8ToString(window->title);
} else {
title = NULL;
}
SetWindowText(hwnd, title ? title : TEXT(""));
if (title) {
SDL_free(title);
}
}
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void
WIN_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
HICON hicon = NULL;
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if (icon) {
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BYTE *icon_bmp;
int icon_len;
SDL_RWops *dst;
SDL_PixelFormat format;
SDL_Surface *surface;
/* Create temporary bitmap buffer */
icon_len = 40 + icon->h * icon->w * 4;
icon_bmp = SDL_stack_alloc(BYTE, icon_len);
dst = SDL_RWFromMem(icon_bmp, icon_len);
if (!dst) {
SDL_stack_free(icon_bmp);
return;
}
/* Write the BITMAPINFO header */
SDL_WriteLE32(dst, 40);
SDL_WriteLE32(dst, icon->w);
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SDL_WriteLE32(dst, icon->h * 2);
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SDL_WriteLE16(dst, 1);
SDL_WriteLE16(dst, 32);
SDL_WriteLE32(dst, BI_RGB);
SDL_WriteLE32(dst, icon->h * icon->w * 4);
SDL_WriteLE32(dst, 0);
SDL_WriteLE32(dst, 0);
SDL_WriteLE32(dst, 0);
SDL_WriteLE32(dst, 0);
/* Convert the icon to a 32-bit surface with alpha channel */
SDL_InitFormat(&format, 32,
0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000);
surface = SDL_ConvertSurface(icon, &format, 0);
if (surface) {
/* Write the pixels upside down into the bitmap buffer */
int y = surface->h;
while (y--) {
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Uint8 *src = (Uint8 *) surface->pixels + y * surface->pitch;
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SDL_RWwrite(dst, src, surface->pitch, 1);
}
SDL_FreeSurface(surface);
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/* TODO: create the icon in WinCE (CreateIconFromResource isn't available) */
#ifndef _WIN32_WCE
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hicon =
CreateIconFromResource(icon_bmp, icon_len, TRUE, 0x00030000);
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#endif
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}
SDL_RWclose(dst);
SDL_stack_free(icon_bmp);
}
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/* Set the icon for the window */
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SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM) hicon);
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/* Set the icon in the task manager (should we do this?) */
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SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM) hicon);
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}
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void
WIN_SetWindowPosition(_THIS, SDL_Window * window)
{
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SDL_VideoDisplay *display = window->display;
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HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
RECT rect;
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SDL_Rect bounds;
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DWORD style;
HWND top;
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BOOL menu;
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int x, y;
/* Figure out what the window area will be */
if (window->flags & SDL_WINDOW_FULLSCREEN) {
top = HWND_TOPMOST;
} else {
top = HWND_NOTOPMOST;
}
style = GetWindowLong(hwnd, GWL_STYLE);
rect.left = 0;
rect.top = 0;
rect.right = window->w;
rect.bottom = window->h;
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#ifdef _WIN32_WCE
menu = FALSE;
#else
menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
#endif
AdjustWindowRectEx(&rect, style, menu, 0);
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WIN_GetDisplayBounds(_this, display, &bounds);
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if ((window->flags & SDL_WINDOW_FULLSCREEN)
|| window->x == SDL_WINDOWPOS_CENTERED) {
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x = bounds.x + (bounds.w - window->w) / 2;
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} else {
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x = bounds.x + window->x + rect.left;
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}
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if ((window->flags & SDL_WINDOW_FULLSCREEN)
|| window->y == SDL_WINDOWPOS_CENTERED) {
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y = bounds.y + (bounds.h - window->h) / 2;
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} else {
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y = bounds.y + window->y + rect.top;
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}
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SetWindowPos(hwnd, top, x, y, 0, 0, (SWP_NOCOPYBITS | SWP_NOSIZE));
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}
void
WIN_SetWindowSize(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
RECT rect;
DWORD style;
HWND top;
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BOOL menu;
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int w, h;
/* Figure out what the window area will be */
if (window->flags & SDL_WINDOW_FULLSCREEN) {
top = HWND_TOPMOST;
} else {
top = HWND_NOTOPMOST;
}
style = GetWindowLong(hwnd, GWL_STYLE);
rect.left = 0;
rect.top = 0;
rect.right = window->w;
rect.bottom = window->h;
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#ifdef _WIN32_WCE
menu = FALSE;
#else
menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
#endif
AdjustWindowRectEx(&rect, style, menu, 0);
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w = (rect.right - rect.left);
h = (rect.bottom - rect.top);
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SetWindowPos(hwnd, top, 0, 0, w, h, (SWP_NOCOPYBITS | SWP_NOMOVE));
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}
void
WIN_ShowWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
ShowWindow(hwnd, SW_SHOW);
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#ifdef _WIN32_WCE
if (window->flags & SDL_WINDOW_FULLSCREEN) {
CE_SHFullScreen(hwnd,
SHFS_HIDESTARTICON | SHFS_HIDETASKBAR |
SHFS_HIDESIPBUTTON);
}
#endif
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}
void
WIN_HideWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
ShowWindow(hwnd, SW_HIDE);
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#ifdef _WIN32_WCE
if (window->flags & SDL_WINDOW_FULLSCREEN) {
CE_SHFullScreen(hwnd,
SHFS_SHOWSTARTICON | SHFS_SHOWTASKBAR |
SHFS_SHOWSIPBUTTON);
}
#endif
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}
void
WIN_RaiseWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
HWND top;
if (window->flags & SDL_WINDOW_FULLSCREEN) {
top = HWND_TOPMOST;
} else {
top = HWND_NOTOPMOST;
}
SetWindowPos(hwnd, top, 0, 0, 0, 0, (SWP_NOMOVE | SWP_NOSIZE));
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#ifdef _WIN32_WCE
if (window->flags & SDL_WINDOW_FULLSCREEN) {
CE_SHFullScreen(hwnd,
SHFS_HIDESTARTICON | SHFS_HIDETASKBAR |
SHFS_HIDESIPBUTTON);
}
#endif
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}
void
WIN_MaximizeWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
ShowWindow(hwnd, SW_MAXIMIZE);
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#ifdef _WIN32_WCE
if (window->flags & SDL_WINDOW_FULLSCREEN) {
CE_SHFullScreen(hwnd,
SHFS_HIDESTARTICON | SHFS_HIDETASKBAR |
SHFS_HIDESIPBUTTON);
}
#endif
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}
void
WIN_MinimizeWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
ShowWindow(hwnd, SW_MINIMIZE);
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#ifdef _WIN32_WCE
if (window->flags & SDL_WINDOW_FULLSCREEN) {
CE_SHFullScreen(hwnd,
SHFS_SHOWSTARTICON | SHFS_SHOWTASKBAR |
SHFS_SHOWSIPBUTTON);
}
#endif
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}
void
WIN_RestoreWindow(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
ShowWindow(hwnd, SW_RESTORE);
}
void
WIN_SetWindowGrab(_THIS, SDL_Window * window)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
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if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
&& (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
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RECT rect;
GetClientRect(hwnd, &rect);
ClientToScreen(hwnd, (LPPOINT) & rect);
ClientToScreen(hwnd, (LPPOINT) & rect + 1);
ClipCursor(&rect);
} else {
ClipCursor(NULL);
}
}
void
WIN_DestroyWindow(_THIS, SDL_Window * window)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (data) {
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ReleaseDC(data->hwnd, data->hdc);
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if (data->created) {
DestroyWindow(data->hwnd);
}
SDL_free(data);
}
}
SDL_bool
WIN_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
{
HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
if (info->version.major <= SDL_MAJOR_VERSION) {
info->window = hwnd;
return SDL_TRUE;
} else {
SDL_SetError("Application not compiled with SDL %d.%d\n",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return SDL_FALSE;
}
}
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/*
* Creates a HelperWindow used for DirectInput events.
*/
int
SDL_HelperWindowCreate(void)
{
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HINSTANCE hInstance = GetModuleHandle(NULL);
WNDCLASS wce;
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HWND hWndParent = NULL;
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/* Make sure window isn't created twice. */
if (SDL_HelperWindow != NULL) {
return 0;
}
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/* Create the class. */
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SDL_zero(wce);
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wce.lpfnWndProc = DefWindowProc;
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wce.lpszClassName = (LPCWSTR) SDL_HelperWindowClassName;
wce.hInstance = hInstance;
/* Register the class. */
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SDL_HelperWindowClass = RegisterClass(&wce);
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if (SDL_HelperWindowClass == 0) {
SDL_SetError("Unable to create Helper Window Class: error %d.",
GetLastError());
return -1;
}
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#ifndef _WIN32_WCE
/* WinCE doesn't have HWND_MESSAGE */
hWndParent = HWND_MESSAGE;
#endif
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/* Create the window. */
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SDL_HelperWindow = CreateWindowEx(0, SDL_HelperWindowClassName,
SDL_HelperWindowName,
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WS_OVERLAPPED, CW_USEDEFAULT,
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CW_USEDEFAULT, CW_USEDEFAULT,
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CW_USEDEFAULT, hWndParent, NULL,
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hInstance, NULL);
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if (SDL_HelperWindow == NULL) {
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UnregisterClass(SDL_HelperWindowClassName, hInstance);
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SDL_SetError("Unable to create Helper Window: error %d.",
GetLastError());
return -1;
}
return 0;
}
/*
* Destroys the HelperWindow previously created with SDL_HelperWindowCreate.
*/
void
SDL_HelperWindowDestroy(void)
{
659
HINSTANCE hInstance = GetModuleHandle(NULL);
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/* Destroy the window. */
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if (SDL_HelperWindow != NULL) {
if (DestroyWindow(SDL_HelperWindow) == 0) {
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SDL_SetError("Unable to destroy Helper Window: error %d.",
GetLastError());
return;
667
}
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SDL_HelperWindow = NULL;
}
/* Unregister the class. */
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if (SDL_HelperWindowClass != 0) {
if ((UnregisterClass(SDL_HelperWindowClassName, hInstance)) == 0) {
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SDL_SetError("Unable to destroy Helper Window Class: error %d.",
GetLastError());
return;
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}
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SDL_HelperWindowClass = 0;
}
}
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/* vi: set ts=4 sw=4 expandtab: */