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...show shaded hints (XP)?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (3):  
     




type
  
TXPHintWindow = class(THintWindow)
  protected
    procedure 
CreateParams(var Params: TCreateParams); override;
    procedure WMNCPaint(var msg: TMessage); message WM_NCPAINT;
  end;

function IsWinXP: Boolean;
begin
  
Result := (Win32Platform = VER_PLATFORM_WIN32_NT) and
    
(Win32MajorVersion >= 5) and (Win32MinorVersion >= 1);
end;

procedure TXPHintWindow.CreateParams(var Params: TCreateParams);
const
  
CS_DROPSHADOW = $00020000;
begin
  inherited
;
  if IsWinXP then
    
Params.WindowClass.Style := Params.WindowClass.Style or CS_DROPSHADOW;
end;

procedure TXPHintWindow.WMNCPaint(var msg: TMessage);
var
  
R: TRect;
  DC: HDC;
begin
  
DC := GetWindowDC(Handle);
  try
    
R := Rect(0, 0, Width, Height);
    DrawEdge(DC, R, EDGE_ETCHED, BF_RECT or BF_MONO);
  finally
    
ReleaseDC(Handle, DC);
  end;
end;

initialization
  
HintWindowClass := TXPHintWindow;
  Application.ShowHint := False;
  Application.ShowHint := True;
end.

 

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