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

THeaderSection.ImageIndex

Ordinal position for the image displayed for the header section.

Declaration

Source position: comctrls.pp line 3989

published property THeaderSection.ImageIndex : TImageIndex
  read FImageIndex
  write SetImageIndex
  default - 1;

Description

ImageIndex is a TImageIndex property with the ordinal position for an image displayed on the header section. The default value for the property is -1 and indicates that a value has not been assigned for the property. Changing the value for the property causes the Changed method to be called to update the item in its collection.

ImageIndex refers to the position in the Images property in an associated THeaderControl. It is used, along with Text and Alignment, in the PaintSection method in TCustomHeaderControl / THeaderControl. The values control the content rendered for the header section on the control canvas.

See also

TCustomHeaderControl.Images

  

Contains bitmaps displayed on the header sections for the control.

TCustomHeaderControl.PaintSection

  

Paints the specified header section to the Canvas for the control.


Version 4.0 Generated 2025-05-03 Home