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Vcl.Controls.TControl.SetBounds

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Delphi

procedure SetBounds(ALeft, ATop, AWidth, AHeight: Integer); virtual;

C++

virtual void __fastcall SetBounds(int ALeft, int ATop, int AWidth, int AHeight);

Properties

Type Visibility Source Unit Parent
procedure
function
public
Vcl.Controls.pas
Vcl.Controls.hpp
Vcl.Controls TControl

Description

Sets the Left, Top, Width, and Height properties all at once.

Use SetBounds to change all of the component's boundary properties at one time. The same effect can be achieved by setting the Left, Top, Width, and Height properties separately, but SetBounds changes all four properties at once ensuring that the control will not repaint between changes.

Specify the values for the Left, Top, Width, and Height properties as the value of the ALeft, ATop, AWidth, and AHeight parameters, respectively.

Calling SetBounds does not necessarily result in the Left, Top, Width, and Height properties changing to the specified values. Before the properties are changed, the AutoSize or Constraints property may limit the changes, and an OnCanResize (or OnConstrainedResize) event handler may change the new values. After the control's Left, Top, Width, and Height properties are changed, SetBounds generates an OnResize event.

Note: Component writers can change the Left, Top, Width, and Height properties while bypassing all resize events and constraint or autosize logic by using the UpdateBoundsRect method instead.

See Also

Code Examples


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