我们知道，Windows都有一个任务栏，你打开一个程序，在任务栏上面就会有一个按钮，那么能不能隐藏那些任务按钮呢？可以：

{

 In this article, I wish to describe the useful undocumented function

 GetTaskmanWindow. The GetTaskmanWindow function returns a handle to

 the window that ownes the taskbar buttons.

 Here is the quoting about taskbar from Microsoft MSDN:

 "The Microsoft? Windows? interface includes a special application desktop

 toolbar called the taskbar.

 The taskbar can be used for such tasks as switching between open

 windows and starting new applications..."

 and "The taskbar includes the Start menu, taskbar buttons,

 a shortcut menu, and a status area...".

 Unfortunately, Win32 API doesn't contain documented

 function that can be used for accessing to the

 taskbar so we should again use an undocumented way.

 Here is the prototype for GetTaskmanWindow:

  function GetTaskmanWindow (): HWND;

 As always, Microsoft doesn't provide us with the exports symbols

 in the User32.lib for this function, so we should load them dynamically using the

 GetProcAddress and GetModuleHandle functions:

}

// getaskmanwnd.cpp (Windows NT/2000)

//

// This example will show you how you can obtain a handle to the

// Windows Taskbar window.

// Translated from C to Delphi by Thomas Stutz

// Original Code:

// (c)1999 Ashot Oganesyan K, SmartLine, Inc

// mailto:ashot@aha.ru, http://www.protect-me.com, http://www.codepile.com

function TaskmanWindow : HWND ;

type

 TGetTaskmanWindow = function (): HWND ; stdcall ;

var

 hUser32 : THandle ;

 GetTaskmanWindow : TGetTaskmanWindow ;

begin

 Result := 0 ;

 hUser32 := GetModuleHandle ( 'user32.dll' );

  if ( hUser32 > 0 ) then

  begin

    @ GetTaskmanWindow := GetProcAddress ( hUser32 , 'GetTaskmanWindow' );

    if Assigned ( GetTaskmanWindow ) then

    begin

     Result := GetTaskmanWindow ;

    end ;

  end ;

end ;

procedure ShowTaskmanWindow ( bValue : Boolean );

var

 hTaskmanWindow : Hwnd ;

begin

 hTaskmanWindow := TaskmanWindow ;

  if hTaskmanWindow <> 0 then

  begin

   ShowWindow ( GetParent ( hTaskmanWindow ), Ord ( bValue ));

  end ;

end ;

// Example to Hide the Taskman Window

procedure TForm1 . Button1Click ( Sender : TObject );

begin

 ShowTaskmanWindow ( True );

end ;