[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Controls' (#lcl)

TWinControl.EraseBackground

Fills the display rectangle for the control with the color and pattern in Brush.

Declaration

Source position: controls.pp line 2443

public procedure TWinControl.EraseBackground(

  DC: HDC

); virtual;

Arguments

DC

  

The device context to use; may be clipped to a certain shape.

Description

EraseBackground is called during Paint requests from the WMEraseBkgnd method, which provides a valid device context in the DC argument. No actions are performed in the method when DC contains 0 (unassigned).

The FillRect routine is called to perform the operation using the Width, Height, and the handle in the Brush property.

See also

TWinControl.Brush

  

The Brush used to paint the background for the control.

TControl.Height

  

The vertical size for the control.

TControl.Width

  

The horizontal size for the control.
Version 3.2 Generated 2024-02-25 Home