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IFullScreenVideoEx::SetMessageDrain

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Microsoft DirectShow 9.0

IFullScreenVideoEx::SetMessageDrain

The SetMessageDrain method specifies a window to receive mouse and keyboard messages from the video window.

Syntax

  HRESULT SetMessageDrain(
  HWND hwnd
);

Parameters

hwnd

[in] Specifies a handle to the message-drain window.

Return Values

Returns an HRESULT value.

Remarks

This method is equivalent to the IVideoWindow::put_MessageDrain method.

The Full Screen video renderer posts all mouse and keyboard messages to the window designated as a message drain. The exact list of messages that are posted is the same as the list given in put_MessageDrain.

Applications do not need to use this method. Instead, call the Filter Graph Manager's put_MessageDrain method before switching to full-screen mode. The Filter Graph Manager automatically sets the same message drain on the renderer that it selects for full-screen mode.

Requirements

Header: Declared in Amvideo.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also