...enable the drop shadow effect on a window (XP)?
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I saw some applications that override the default window behaviour in that
way that the window display a thin transparent shadow. How to do this?
Override the CreateParams method of your form and add the
CS_DROPSHADOW flag to the WindowClass.Style.
CS_DROPSHADOW Enables the drop shadow effect on a window.
The effect is turned on and off through SPI_SETDROPSHADOW.
Typically, this is enabled for small, short-lived windows such as
menus to emphasize their Z order relationship to other windows.
TForm1 = class(TForm)
procedure CreateParams(var Params: TCreateParams); override;
procedure TForm1.CreateParams(var Params: TCreateParams);
CS_DROPSHADOW = $00020000;
Params.WindowClass.Style := Params.WindowClass.Style or CS_DROPSHADOW;