◄Message Groups► ◄Overview► ◄Up► ◄Next► ◄Previous► ──────────────────────────────────────────────────────────────────────────── WM_ACTIVATE Indicates a change in activation state WM_FOCUSCHANGE Indicates that the focus window is changing WM_QUERYFOCUSCHAIN Queries the focus chain WM_SETFOCUS Indicates a change of focus WM_SETSELECTION Indicates whether a window is selected/deselected