Unit 'ComCtrls' Package
[Overview][Constants][Types][Classes][Procedures and functions][Index] [#lcl]

TCustomUpDown.OnAssociateChangeBounds

Implements an OnChangeBounds event handler assigned to the Associate control in the class instance.

Declaration

Source position: comctrls.pp line 1969

protected procedure TCustomUpDown.OnAssociateChangeBounds(

  Sender: TObject

);

Arguments

Sender

  

Control for the event notification. Not used in the method.

Description

OnAssociateChangeBounds ensures that the control is repositioned and realigned to the Associate control when its bounds have been changed.

The AlignButton property is used to determine which coordinates (Left, Right, Width, or Height) are adjusted to align and position the control adjacent to the Associate control.

udLeft, udRight
Causes the Top and Height properties for the control to be set to the corresponding values in Associate. The Left property is calculated to place the up/down control relative to the specified edge for the Associate control.
upTop, udBottom
Causes the Left and Width properties for the control to be set to the corresponding values in Associate. The Top property is calculated to place the up/down control relative to the specified edge for the Associate control.

SetBounds is called to apply the calculated Left, Top, Width, and Height values to the control.

No actions are performed in the method if a control has not been assigned to the Associate property in the class instance.

OnAssociateChangeBounds is assigned when a control is assigned to the Associate property.

See also

TCustomUpDown.AlignButton

  

AlignButton - how to align the button: left or right.

TCustomUpDown.Associate

  

Control used to display and edit the Position for the control.

TUDAlignButton

  

Contains values used to align the buttons on a TUpDown control.

TWinControl.SetBounds

  

Sets the control bounds and adjusts child and docked controls.

TControl.Width

  

The horizontal size for the control.

TControl.Height

  

The vertical size for the control.

TControl.Left

  

The client coordinate with the left edge for the control.

TControl.Top

  

The client coordinate for the top edge of the control.


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