显示动态gif图片

DWORD WINAPI GifThread(LPVOID lpParam)
{
//查找资源，加载资源到内存，锁定资源
HRSRC hRsrc = FindResourceW(hInst, MAKEINTRESOURCEW(IDR_GIF), L"GIF");
HGLOBAL hGlobal = LoadResource(hInst, hRsrc);
LPVOID lpResData = LockResource(hGlobal);
DWORD dwResSize = SizeofResource(hInst, hRsrc);

//获得系统环境路径
WCHAR szResPath[MAX_PATH] = L"\0";
GetEnvironmentVariableW(L"TEMP", szResPath, sizeof(szResPath));
wcscat(szResPath, L"\\hhhhgif.gif");

//建立flash资源文件
HANDLE hFile = CreateFileW(szResPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, NULL, NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
DWORD dwWritten;
WriteFile(hFile, lpResData, dwResSize, &dwWritten, NULL);
}

CloseHandle(hFile);
FreeResource (hGlobal); //释放flash资源

//显示gif
HDC hdc = GetDC(g_hwnd);
Image *image = new Image(szResPath);
if (image == NULL)
{
return -1;
}
UINT count = 0;
count = image->GetFrameDimensionsCount();
GUID *pDimensionIDs = (GUID*)new GUID[count];
image->GetFrameDimensionsList(pDimensionIDs, count);
WCHAR strGuid[39];
StringFromGUID2(pDimensionIDs[0], strGuid, 39);
UINT frameCount = image->GetFrameCount(&pDimensionIDs[0]);
delete []pDimensionIDs;

int size = image->GetPropertyItemSize(PropertyTagFrameDelay);
PropertyItem *pItem = NULL;
pItem = (PropertyItem*)malloc(size);
image->GetPropertyItem(PropertyTagFrameDelay,size,pItem);

UINT fcount=0;
GUID Guid = FrameDimensionTime;

while (g_gif)
{
Graphics graphics(hdc);
graphics.DrawImage(image, 50, 120, 400, 200);
image->SelectActiveFrame(&Guid, fcount++);

if (fcount == frameCount)
fcount=0;

long lPause = ((long*)pItem->value)[fcount]*10;
Sleep(lPause);
}
ReleaseDC(g_hwnd, hdc);

return 0;
}

#define TIMER_FIR 1#define TIMER_SEC 2//利用两个定时器，分别显示多帧的gifBOOL CALLBACK GifDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam){PAINTSTRUCT ps;HDC hdc;HBRUSH hBrush, hOldbrush;RECT rect;static Image *image;static UINT count;static WCHAR strGuid[39];static UINT frameCount;static PropertyItem* pItem=NULL;static UINT fcount;static GUID Guid;static long lPause;static int size;static GUID *pDimensionIDs;//gdi+用到的两个变量GdiplusStartupInput m_gdiplusStartupInput;static ULONG_PTR m_pGdiToken;static WCHAR szResPath[MAX_PATH] = L"\0";switch (message){case WM_INITDIALOG:{//装载gdi+GdiplusStartup(&m_pGdiToken, &m_gdiplusStartupInput, NULL);//查找资源，加载资源到内存，锁定资源HRSRC hRsrc = FindResourceW(hInst, MAKEINTRESOURCEW(IDR_GIF), L"GIF");HGLOBAL hGlobal = LoadResource(hInst, hRsrc);LPVOID lpResData = LockResource(hGlobal);DWORD dwResSize = SizeofResource(hInst, hRsrc);//获得系统环境路径GetEnvironmentVariableW(L"TEMP", szResPath, sizeof(szResPath));wcscat(szResPath, L"\\hhhhgif.gif");//建立flash资源文件HANDLE hFile = CreateFileW(szResPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, NULL, NULL);if (hFile != INVALID_HANDLE_VALUE){DWORD dwWritten;WriteFile(hFile, lpResData, dwResSize, &dwWritten, NULL);}CloseHandle(hFile);FreeResource (hGlobal); //释放flash资源SetTimer(hDlg,TIMER_FIR,0,NULL);}break;case WM_TIMER:{switch(wParam){case TIMER_FIR:{hdc=GetDC(hDlg);image=new Image(szResPath);count=0;count=image->GetFrameDimensionsCount();pDimensionIDs=(GUID*)new GUID[count];image->GetFrameDimensionsList(pDimensionIDs,count);StringFromGUID2(pDimensionIDs[0],strGuid,39);frameCount=image->GetFrameCount(&pDimensionIDs[0]);delete []pDimensionIDs;size=image->GetPropertyItemSize(PropertyTagFrameDelay);//PropertyItem* pItem=NULL;// pItem=(PropertyItem*)malloc(size);pItem=(PropertyItem*)new PropertyItem[size];image->GetPropertyItem(PropertyTagFrameDelay,size,pItem);fcount=0;Guid=FrameDimensionTime;Graphics  graphics(hdc);graphics.DrawImage(image,0,0);image->SelectActiveFrame(&Guid,fcount++);if(fcount==frameCount)fcount=0;lPause=((long*)pItem->value)[fcount]*10;ReleaseDC(hDlg,hdc);KillTimer (hDlg, TIMER_FIR) ;SetTimer(hDlg,TIMER_SEC,lPause,NULL);InvalidateRect (hDlg, NULL, FALSE) ;break;}case TIMER_SEC:{image->SelectActiveFrame(&Guid,fcount++);if(fcount==frameCount)fcount=0;lPause=((long*)pItem->value)[fcount]*10;KillTimer(hDlg,TIMER_SEC);SetTimer(hDlg,TIMER_SEC,lPause,NULL);InvalidateRect (hDlg, NULL, FALSE) ;}}}break; case WM_PAINT:{hdc = BeginPaint(hDlg, &ps);// TODO: 在此添加任意绘图代码...//hBrush = CreateSolidBrush(RGB(68,68,68));  //创建新画刷//GetClientRect(hDlg, &rect);    //获得主窗口的面积//hOldbrush = (HBRUSH)SelectObject(hdc, hBrush);  //把画刷选入设备//Rectangle(hdc, rect.left, rect.top, rect.right, rect.bottom);//FrameRect(hdc, &rect, hBrush);  //重画窗口边框//SelectObject(hdc, hOldbrush); //把旧画刷选入设备Graphics graphics(hdc);graphics.DrawImage(image,0,0);EndPaint(hDlg, &ps);}break;}return FALSE;}