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Reference for unit 'Controls' (#lcl)

TControl.WindowProc

The handler for all messages.

Declaration

Source position: controls.pp line 1826

public property TControl.WindowProc : TWndMethod read FWindowProc write FWindowProc;

WindowProc is set to TControl.WndProc by default.

When you ever change WindowProc, then remember the previous setting and delegate all unhandled messages to that method.

TWndMethod		Method type for WindowProc handlers.
TLMessage
TControl.Perform		Calls a message handler directly, bypassing the message queue.