IVMRMixerBitmap::GetAlphaBitmapParameters
| Microsoft DirectShow 9.0 |
IVMRMixerBitmap::GetAlphaBitmapParameters
The GetAlphaBitmapParameters method retrieves a copy of the current image and related blending parameters.
Syntax
HRESULT GetAlphaBitmapParameters( PVMRALPHABITMAP pBmpParms );
Parameters
pBmpParms
[out] Pointer to a VMRALPHABITMAP structure that receives the bitmap, information about the blending values, and the location to blend it.
Return Values
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
| Error Code | Description |
| E_POINTER | pBmpParms is invalid. |
| VFW_E_WRONG_STATE | The mixer has not been loaded. |
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also