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THintWindow.UpdateRegion procedure

Member of THintWindowprotectedIn unit Forms

Updates the Window Region fir the hint window.

Declaration

pascal
procedure UpdateRegion; virtual

Description

UpdateRegion calls the SetWindowRgn routine to set the window region for the hint window. The window region contains the area where the system can perform drawing operations; no area outside of the window region can be updated.

SetWindowRgn requires access to the Handle for the hint window; no actions are performed in the method when HandleAllocated returns False.

When UseBGThemes is enabled, ThemeServices are used to get the theme element details needed for the client rectangle in the hint window.

See also

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.