Vcl.Taskbar.TTaskbar.OnThumbPreviewRequest

Delphi

property OnThumbPreviewRequest;

C++

__property OnThumbPreviewRequest;

Type	Visibility	Source	Unit	Parent
event	published	Vcl.Taskbar.pas Vcl.Taskbar.hpp	Vcl.Taskbar	TTaskbar

Description

Occurs when the system requires a thumb preview of the Windows task bar.

Vcl.Taskbar.TTaskbar.OnThumbPreviewRequest inherits from Vcl.Taskbar.TCustomTaskbar.OnThumbPreviewRequest. All content below this line refers to Vcl.Taskbar.TCustomTaskbar.OnThumbPreviewRequest.

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.