Vcl.Taskbar.TTaskbar.OnThumbPreviewRequest
Delphi
property OnThumbPreviewRequest: TThumbPreviewItemRequestEvent read FOnThumbPreviewRequest write FOnThumbPreviewRequest;
C++
__property OnThumbPreviewRequest;
Properties
| 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. {{#multireplace:Vcl.Taskbar.TTaskbar.OnThumbPreviewRequest|H21=!|H25=%|H28=(|H29=)|H2A=*|H2B=+|H2F=/|H3C=<|H3D==|H3E=>|H5B=[|H5D=]|H5E=^|H7C=|}} inherits from {{#multireplace:Vcl.Taskbar.TCustomTaskbar.OnThumbPreviewRequest|H21=!|H25=%|H28=(|H29=)|H2A=*|H2B=+|H2F=/|H3C=<|H3D==|H3E=>|H5B=[|H5D=]|H5E=^|H7C=|}}. All content below this line refers to {{#multireplace:Vcl.Taskbar.TCustomTaskbar.OnThumbPreviewRequest|H21=!|H25=%|H28=(|H29=)|H2A=*|H2B=+|H2F=/|H3C=<|H3D==|H3E=>|H5B=[|H5D=]|H5E=^|H7C=|}}.
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:
Senderis the TObject that requires the thumb preview.APreviewHeightis the height value of the thumb preview in the application Windows task bar.APreviewWidthis the width value of the thumb preview in the application Windows task bar.PreviewBitmapis the graphical image that contains the thumb preview.