（免费）Windows纯C调用gdi+绘制gif动图

#define UNICODE #define _UNICODE #include <Windows.h> #include <shlwapi.h> #ifndef PropertyTagFrameDelay #define PropertyTagFrameDelay (0x5100) #endif #ifndef FrameDimensionTime #define FrameDimensionTime {0x6AEDBD6D,0x3FB5,0x418A,{0x83,0xA6,0x7F,0x45,0x22,0x9D,0xC8,0x72}} #endif typedef struct GdiplusStartupInput { UINT32 GdiplusVersion; LPVOID DebugEventCallback; BOOL SuppressBackgroundThread; BOOL SuppressExternalCodecs; }GdiplusStartupInput; GdiplusStartupInput g_gdiplusStartupInput={1,NULL,FALSE,FALSE}; ULONG_PTR g_gdiplusToken; typedef int GpImage; typedef int GpGraphics; typedef struct PropertyItem { PROPID id; ULONG length; WORD type; UNALIGNED VOID* value; }PropertyItem; GpImage* g_pImage; DECLSPEC_IMPORT DWORD WINAPI GdiplusStartup(ULONG_PTR *token,const GdiplusStartupInput *input,LPVOID output); DECLSPEC_IMPORT void WINAPI GdiplusShutdown(ULONG_PTR token); DECLSPEC_IMPORT DWORD WINAPI GdipLoadImageFromStream(IStream* stream, GpImage **image); DECLSPEC_IMPORT DWORD WINAPI GdipGetImageWidth(GpImage *image, UINT *width); DECLSPEC_IMPORT DWORD WINAPI GdipGetImageHeight(GpImage *image, UINT *height); DECLSPEC_IMPORT DWORD WINAPI GdipImageGetFrameDimensionsCount(GpImage* image, UINT* count); DECLSPEC_IMPORT DWORD WINAPI GdipImageGetFrameDimensionsList(GpImage* image, GUID* dimensionIDs, UINT count); DECLSPEC_IMPORT DWORD WINAPI GdipImageGetFrameCount(GpImage *image, const GUID* dimensionID, UINT* count); DECLSPEC_IMPORT DWORD WINAPI GdipGetPropertyItemSize(GpImage *image, PROPID propId, UINT* size); DECLSPEC_IMPORT DWORD WINAPI GdipGetPropertyItem(GpImage *image, PROPID propId,UINT propSize, PropertyItem* buffer); DECLSPEC_IMPORT DWORD WINAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics); DECLSPEC_IMPORT DWORD WINAPI GdipDeleteGraphics(GpGraphics *graphics); DECLSPEC_IMPORT DWORD WINAPI GdipDrawImageRectI(GpGraphics *graphics, GpImage *image, INT x, INT y, INT width, INT height); DECLSPEC_IMPORT DWORD WINAPI GdipImageSelectActiveFrame(GpImage *image, const GUID* dimensionID, UINT frameIndex); DECLSPEC_IMPORT DWORD WINAPI GdipSetSmoothingMode(GpGraphics *graphics, int smoothingMode); HDC g_hDc; HDC g_hMemDC; HBITMAP g_hBmp; HMODULE g_hGdiPlus; HINSTANCE g_hInst; LPCTSTR g_lpClassName = TEXT("giftest"); LPCTSTR g_lpWindowName = TEXT("致敬，我们热爱和战斗过的长空"); int g_iCx,g_iCy; UINT g_uFrameCount; HWND g_hWnd; PropertyItem* g_pItem; LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); DWORD WINAPI ShutDown(void) { GdiplusShutdown(g_gdiplusToken); HeapFree(GetProcessHeap(),0,g_pItem); DeleteObject(g_hDc); DeleteObject(g_hBmp); ExitProcess(0); return 0; } ULARGE_INTEGER WINAPI GetTimeUlargeInteger(void) { SYSTEMTIME systemtime; FILETIME filetime; GetSystemTime(&systemtime); SystemTimeToFileTime(&systemtime,&filetime); ULARGE_INTEGER u; u.LowPart=filetime.dwLowDateTime; u.HighPart=filetime.dwHighDateTime; return u; } DWORD WINAPI ThreadProc(PropertyItem* pItem) { PlaySound(TEXT("Sound"),g_hInst,SND_RESOURCE | SND_ASYNC); int iFcount=0; GUID Guid = FrameDimensionTime; ULARGE_INTEGER u0=GetTimeUlargeInteger(); DWORD dwCurrentPassedTime=0; DWORD dwCurrentDisplayedTime=0; RECT rcClientRect; GetClientRect(g_hWnd,&rcClientRect); while(TRUE) { if(dwCurrentDisplayedTime*10000<dwCurrentPassedTime) { dwCurrentDisplayedTime+=((long*)pItem->value)[++iFcount]*10; continue; } g_hDc=GetDC(g_hWnd); g_hMemDC=CreateCompatibleDC(g_hDc); HBITMAP g_hBmp=CreateCompatibleBitmap(g_hDc,g_iCx,g_iCy); SelectObject(g_hMemDC,g_hBmp); GpGraphics* gh; GdipCreateFromHDC(g_hMemDC,&gh); #define SmoothingModeAntiAlias8x8 5 GdipSetSmoothingMode(gh,SmoothingModeAntiAlias8x8); GdipDrawImageRectI(gh,g_pImage,0,0,rcClientRect.right,rcClientRect.bottom); GdipDeleteGraphics(gh); BitBlt(g_hDc,0,0,g_iCx,g_iCy,g_hMemDC,0,0,SRCCOPY); DeleteDC(g_hDc); DeleteObject(g_hBmp); ReleaseDC(g_hWnd,g_hDc); GdipImageSelectActiveFrame(g_pImage,&Guid,iFcount++); if(iFcount >= g_uFrameCount) return ShutDown(); long lPause = ((long*)pItem->value)[iFcount]*10; Sleep(lPause); ULARGE_INTEGER uCurrent=GetTimeUlargeInteger(); dwCurrentPassedTime=uCurrent.QuadPart-u0.QuadPart; dwCurrentDisplayedTime+=lPause; } return 0; } int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR lpCmdLine,int uCmdShow) //用wWinMain的话MinGW无法编译 { GdiplusStartup(&g_gdiplusToken, &g_gdiplusStartupInput, NULL); HANDLE hHeap=GetProcessHeap(); HRSRC hRscGif=FindResource(NULL,MAKEINTRESOURCE(1000),TEXT("BINARY")); HGLOBAL hGlb=LoadResource(NULL,hRscGif); LPBYTE lpGif=LockResource(hGlb); IStream* iStream=SHCreateMemStream(lpGif,SizeofResource(NULL,hRscGif)); GdipLoadImageFromStream(iStream,&g_pImage); UINT uWndWidth,uWndHeight; GdipGetImageWidth(g_pImage,&uWndWidth); GdipGetImageHeight(g_pImage,&uWndHeight); g_iCx=uWndWidth,g_iCy=uWndHeight; UINT uCount; GdipImageGetFrameDimensionsCount(g_pImage,&uCount); GUID *pDimensionIDs=(GUID*)HeapAlloc(hHeap,0,uCount*sizeof(GUID)); GdipImageGetFrameDimensionsList(g_pImage,pDimensionIDs,uCount); WCHAR pStrGuid[39]; StringFromGUID2(pDimensionIDs, pStrGuid, 39); UINT uFrameCount; GdipImageGetFrameCount(g_pImage,pDimensionIDs,&uFrameCount); g_uFrameCount=uFrameCount; HeapFree(hHeap,0,pDimensionIDs); UINT uSize; GdipGetPropertyItemSize(g_pImage,PropertyTagFrameDelay,&uSize); g_pItem=HeapAlloc(hHeap,0,uSize); GdipGetPropertyItem(g_pImage,PropertyTagFrameDelay,uSize,g_pItem); //////////////////////////////////////////////////////////////////////////////////////////////////////// WNDCLASS wndclass; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); wndclass.hInstance = hInstance; wndclass.lpfnWndProc = WndProc; wndclass.lpszClassName = g_lpClassName; wndclass.lpszMenuName = NULL; wndclass.style = 0; RegisterClass(&wndclass); HWND hWnd=g_hWnd=CreateWindow( g_lpClassName, g_lpWindowName, WS_POPUPWINDOW | WS_CAPTION, CW_USEDEFAULT, CW_USEDEFAULT, uWndWidth, uWndHeight, NULL, NULL, hInstance, NULL ); CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)(LPVOID)ThreadProc,g_pItem,0,NULL); ShowWindow(hWnd, SW_SHOW); UpdateWindow(hWnd); MSG msg; while (GetMessage(&msg, NULL, 0, 0)>0) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { static PAINTSTRUCT ps; switch (message) { case WM_CREATE: return 0; case WM_PAINT: BeginPaint(hWnd, &ps); EndPaint(hWnd, &ps); return 0; case WM_CLOSE: ShutDown(); break; case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hWnd, message, wParam, lParam); }