TWinControl.WMWindowPosChanged procedure

Member of TWinControlprotectedIn unit Controls

Event handler for size/move messages.

Declaration

pascal

procedure WMWindowPosChanged(var Message: TLMWindowPosChanged); message

Description

This method is called whenever left, top, width, height, clientwidth or clientheight have changed.

If the source of the message is the interface, the new size is stored in the internal BoundsRealized member. Avoids sending a size message back to the interface.

An experiment, built from Lazarus main 2dfa93c66e of 10-22-2026. Not the official Lazarus documentation.