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IVideoWindow::NotifyOwnerMessage

  • Article

This method forwards messages that have been received by a parent window to a child window owned by a filter.

HRESULT NotifyOwnerMessage(
  long hwnd,
  long uMsg,
  long wParam,
  long lParam
);

Parameters

  • hwnd
    [in] Window handle.
  • uMsg
    [in] Message being sent.
  • wParam
    [in] Message's wParam passed in.
  • lParam
    [in] Message's lParam passed in.

Return Values

Returns an HRESULT value.

Remarks

This method should be used by windows that make a renderer window a child window. It forwards significant messages to the child window that the child window would not otherwise receive. This includes the following messages:

  • WM_ACTIVATEAPP
  • WM_DEVMODECHANGE
  • WM_DISPLAYCHANGE
  • WM_PALETTECHANGED
  • WM_PALETTEISCHANGING
  • WM_QUERYNEWPALETTE
  • WM_SYSCOLORCHANGE

Requirements

DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.

See Also

IVideoWindow Interface

Last updated on Wednesday, April 13, 2005

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