CWnd::ReflectChildNotify
Visual Studio 2008
This message function is called by the framework from OnChildNotify.
BOOL ReflectChildNotify( UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult );
It is a helper function which reflects message to its source.
Reflected messages are sent directly to CWnd::OnWndMsg or CCmdTarget::OnCmdMsg.
For more information about message reflection, see Handling Reflected Messages.