TImageEnMView.OnImageIDRequestEx

Declaration

property OnImageIDRequestEx: TIEImageIDRequestExEvent;

Description

Occurs whenever an image is required if you have specified a value for the ImageID property.

ID is the value you have specified in ImageID property.
Bitmap is the image to display. It is a TIEBitmap (use OnImageIDRequest if you require a TBitmap). The bitmap is copied in TImageEnMView, and then automatically freed.

Notes:
- You must have specified and ImageID of >=0 or the OnImageIDRequestEx event will not fire (the value of ImageID is not used by ImageEn, so any value is acceptable).
- The Bitmap you specify for OnImageIDRequestEx will be freed by the control, so ensure you pass a temporary object

Demo

Example

procedure TMyForm.ImageEnMViewOnImageIDRequestEx(Sender: TObject; ID: integer; var Bitmap: TIEBitmap);
begin
  // Create the image dynamically
  Bitmap := TIEBitmap.create;
  GenerateChartOfID(ID, Bitmap);
end;

See Also

- OnImageIDRequest
- OnGetLoadFilename

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