IAMOverlayFX::GetOverlayFX method (strmif.h)
GetOverlayFX method retrieves the effects currently applied to the overlay surface, if any. The application can call this method while the filter graph is running.
HRESULT GetOverlayFX( DWORD *lpdwOverlayFX );
Pointer a variable that receives a value indicating which effects, if any, are currently applied to the overlay surface. The value is a logical combination of flags from the AMOVERLAYFX enumeration.
Returns an HRESULT value that depends on the implementation of the interface. The DirectShow implementation returns S_OK if successful, or E_POINTER to indicate a NULL pointer argument.
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||strmif.h (include Dshow.h)|