IVMRSurface::UnlockSurface method (strmif.h)

The UnlockSurface method unlocks the attached DirectDraw surface.

Syntax

HRESULT UnlockSurface();

Return value

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Return code Description
E_FAIL
No DirectDraw surface is attached to this sample.

Requirements

   
Minimum supported client Windows XP with SP1 [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IVMRSurface Interface

Using the Video Mixing Renderer