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This topic applies to Windows XP or later.
The OverlayUnavailable method is called when the overlay surface on the graphics card is not available.
Syntax
HRESULT OverlayUnavailable();
Parameters
This method has no parameters.
Return Value
Return S_OK or an error code.
Remarks
The dispatch identifier (dispid) of this method is eventidOverlayUnavailable.
Requirements
| Header | Declared in Dshow.h. |
| DLL | Requires Quartz.dll. |
See Also
IMSVidVideoRendererEvent Interface
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Build date: 12/4/2008