1: //Capture bitmap form directshow by IVMRWindowlessControl9 interface
2: HRESULT CaptureBitmap(IVMRWindowlessControl9 *pVMRControl9, int destWidth, int destHeight, LPCWSTR fileName)
3: { 4: BYTE* pDib = NULL;
5: HRESULT hr = pVMRControl9->GetCurrentImage(&pDib);
6: if (FAILED(hr))
7: return hr;
8:
9: BITMAPINFO* pBitmapInfo = (BITMAPINFO*)pDib;
10: HDC hScreenDC = ::GetDC(NULL);
11: ASSERT(hScreenDC != NULL);
12: void* pBits = pDib + sizeof(BITMAPINFOHEADER);
13: HBITMAP hBitmap = ::CreateDIBitmap(hScreenDC,&(pBitmapInfo->bmiHeader),CBM_INIT,pBits,pBitmapInfo,DIB_RGB_COLORS);
14: //
15: //Do something with hBitmap here
16: //
17: ::DeleteObject(hBitmap);
18: ::ReleaseDC(NULL,hScreenDC);
19: ::CoTaskMemFree(pDib);
20:
21: return hr;
22: }
