TCustomForm.KeyPreview property
Allows the form to intercept keystrokes in child controls.
Declaration
property KeyPreview: Boolean read FKeyPreview write FKeyPreview default False;Description
KeyPreview is a
Boolean property which controls whether
the form can intercept key strokes from child controls.
When KeyPreview is set to True, the form is allowed to receive
KeyDown, KeyUp, and KeyPress events before
they are received / applied to the ActiveControl in the form. The
default value for the property is False.
KeyPreview is used in the implementation of key handling methods in
TWinControl. KeyPreview is often enabled for modal dialogs to
allow the parent form to handle specific interactions with the user.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.