How to remove System Menu

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Hi...

I want to remove system menu from the title bar

Restore
Maximize
Minimize
Move

but I have done it by using the system API ,the function of the user32.dll

[DllImport("user32.dll")]
         public static extern bool RemoveMenu(IntPtr hMenu, Int32 wPosition, Int32 wFlags);

But using this function the relative functionality is also disabled.
I want to remove the system menu but the functionality should remain.

Posted 17-Oct-11 0:50am

Sumit K Sharma

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-10-17T06:34:00

I think the solutions using P/Invoke are ugly, but they should work:
http://blogs.msdn.com/b/wpfsdk/archive/2007/08/02/a-wpf-window-without-an-window-icon-the-thing-you-click-to-get-the-system-menu.aspx[^],
http://winsharp93.wordpress.com/2009/07/21/wpf-hide-the-window-buttons-minimize-restore-and-close-and-the-icon-of-a-window/[^].

I would probably prefer a .NET-only work-around.

You can use different windows style by assigning different value to the property System.Windows.Window.WindowStyle. You can also do it in XAML, in the top-level tag <Window>. Use the value of System.Windows.WindowStyle.ToolWindow. See:
http://msdn.microsoft.com/en-us/library/system.windows.window.windowstyle.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.windowstyle.aspx[^].

Alternatively, you can use System.Windows.WindowStyle.None, but in this case you won't have any non-client areas at all, not a title bar and buttons, nothing. This style is usually used to develop windows with non-rectangular shapes and other cases of highly customized appearance. In certain applications, the missing control elements of non-client area (such as close, minimize/restore buttons, system menu, etc.) are simply simulated in the client area using WPF controls, custom or not.

Pay attention for this second option; it is not so cumbersome as it might seem. This is just the maximum level of customization of appearance possible; such design totally goes away from dependency on Windows and presents pure "WPF-only" UI. For certain (maybe rather exotic) types of UI, this is the very best.

—SA