UINT BCGM_MDI_TOP_LEVEL_FRAME_CHANGED

This message is sent to all child views when the MDI top-level frame is changed (e.g., the MDI child frame is torn off).

Parameters

wParam	This parameter is not used.
lParam	A pointer to CBCGPMDIFrameWnd object (top-level MDI frame window).

Returns

Not used.