CBaseControlWindow.put_MessageDrain method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The put_MessageDrain method sets the window to receive window messages sent to the video renderer.
Syntax
HRESULT put_MessageDrain(
OAHWND Drain
);
Parameters
-
Drain
-
Window to post messages to.
Return value
Returns an HRESULT value.
Remarks
Messages sent to the video renderer filter can be posted to another window. This member function registers the window to receive these messages. Unlike the CBaseControlWindow::put_Owner member function, this member function does not make the video window a child of another window. It is particularly useful for full-screen video renderers, which cannot be child windows.
Requirements
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