Vcl.Taskbar.TCustomTaskbar.OnThumbPreviewRequest
Delphi
property OnThumbPreviewRequest: TThumbPreviewItemRequestEvent read FOnThumbPreviewRequest write FOnThumbPreviewRequest;
C++
__property TThumbPreviewItemRequestEvent OnThumbPreviewRequest = {read=FOnThumbPreviewRequest, write=FOnThumbPreviewRequest};
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
event | public | Vcl.Taskbar.pas Vcl.Taskbar.hpp |
Vcl.Taskbar | TCustomTaskbar |
Description
Occurs when the system requires a thumb preview of the Windows task bar.
- Note: This event can be triggered when the customized preview property is set to
True
.
This event provides the following arguments to its event handler:
Sender
is the TObject that requires the thumb preview.APreviewHeight
is the height value of the thumb preview in the application Windows task bar.APreviewWidth
is the width value of the thumb preview in the application Windows task bar.PreviewBitmap
is the graphical image that contains the thumb preview.