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Sets the full-screen mode for the video renderer filter supporting this interface.
HRESULT put_FullScreenMode( long FullScreenMode );
Parameters
- FullScreenMode
- [in] OATRUE if supporting full-screen video, or OAFALSE if not.
Return Values
Returns E_NOTIMPL if the video renderer doesn't support full-screen mode or NOERROR if it does.
Remarks
This method enables an application to switch a full-screen renderer into and out of full-screen mode. The renderer's behavior when switched out of full-screen mode is implementation-dependent. The Microsoft full-screen renderer, for example, switches back to a window.
The IVideoWindowplug-in distributor in the filter graph manager implements full-screen renderer switching. It looks to see if any renderer in the graph supports a full-screen mode and, if not, will temporarily replace the renderer with the default DirectShow full-screen renderer. It calls IVideoWindow::GetMaxIdealImageSizeto determine if a window can be made a topmost window and resized to the entire display. This is preferred to swapping renderers, because the filter graph might be using DirectDraw overlays or a hardware decoder filter.