Directshow video window-less browsing

HRESULT CVideoSource: AddWindowLessRender (HWND hwndApp, RECT win_rect) // Window to hold the video.
{

HRESULT hr = NULL;
CRect rcSrc, rcDest;
Hr = CoCreateInstance (CLSID_VideoMixingRenderer, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **) & m_pVideoRender );
If (hr! = S_ OK) return hr;
// Create the VMR.

// Add the VMR to the filter graph.
Hr = m_pGrapher-> AddFilter (m_pVideoRender, L "Video Mixing Renderer ");
If (FAILED (hr ))
{
M_pVideoRender-> Release ();
Return hr;
}
// Set the rendering mode.
Long lWidth, lHeight, lARWidth, lARHeight;
Hr = m_pVideoRender-> QueryInterface (IID_IVMRFilterConfig, (void **) & m_pFilterConfig );
If (FAILED (hr ))
{
M_pVideoRender-> Release ();
Return hr;
}
 
Hr = m_pFilterConfig-> SetRenderingMode (VMRMode_Windowless );//
If (FAILED (hr ))
{
M_pVideoRender-> Release ();
Return hr;
}
 
// Set the window.
Hr = m_pVideoRender-> QueryInterface (IID_IVMRWindowlessControl, (void **) & m_pWindowsLessControl );
If (FAILED (hr ))
{
M_pVideoRender-> Release ();
Return hr;
}
If (m_bSetVedioFormat) // when you adjust the video, set the format
{
Hr = UpdateVideoCapConfig ();
M_bSetVedioFormat = false; // The video format is adjusted to the original position.
}
// RenderStream ();
IPin * pPin2;
Hr = m_pBuilder-> FindPin (m_pSmartTee, PINDIR_OUTPUT, 0, 0, TRUE, 1, & pPin2 );
Hr = m_pBuilder-> RenderStream (0, 0, pPin2, 0, m_pVideoRender );
// Hr = m_pBuilder-> RenderStream (0, 0, m_pSmartTee, 0, m_pVideoRender );
 

// Hr = m_pBuilder-> RenderStream (
// & PIN_CATEGORY_PREVIEW, // & PIN_CATEGORY_CAPTURE, // Pin category
// & MEDIATYPE_Video, // Media type
// M_pSmartTee, // m_pVideoCap, // Capture filter
// NULL, // m_pVidCompress, // Compression filter (optional)
// M_pVideoRender // Multiplexer or renderer filter
//);
Hr = m_pWindowsLessControl-> SetVideoClippingWindow (hwndApp );
Hr = m_pWindowsLessControl-> GetNativeVideoSize (& lWidth, & lHeight, NULL, NULL );
If (FAILED (hr ))
{
M_pVideoRender-> Release ();
Return hr;
}
// Set the source rectangle.
SetRect (& rcSrc, 0, 0, lWidth, lHeight );
 
// Get the window client area.
GetClientRect (hwndApp, & rcDest );
// Set the destination rectangle.
SetRect (& rcDest, 10, 10, win_rect.right, win_rect.bottom );
// SetRect (& rcDest, 0, 0, rcDest. right, rcDest. bottom );

Hr = m_pWindowsLessControl-> SetVideoPosition (& rcSrc, & rcDest );
// Make sure we process events while we're re previewing!
Hr = m_pGrapher-> QueryInterface (IID_IMediaEventEx, (void **) & m_pMediaEventEx );
If (hr = NOERROR)
{
M_pMediaEventEx-> setpolicywindow (OAHWND) hwndApp, wm_fg1_y, 0 );
}
Return hr;
}