/// <summary>
/// Set a winform windows "X group leader" value.
/// By default all mono winform applications get the same group leader (WM_HINTS property)
/// (use xprop to see a windows WM_HINTS values)
/// </summary>
public static void SetGroupLeader(IntPtr handle, IntPtr newValue)
{
var x11Handle = MonoGetX11Window(handle);
IntPtr ptr = NativeX11Methods.XGetWMHints(NativeReplacements.MonoGetDisplayHandle(), x11Handle);
var wmhints = (NativeX11Methods.XWMHints)Marshal.PtrToStructure(ptr, typeof(NativeX11Methods.XWMHints));
NativeX11Methods.XFree(ptr);
wmhints.window_group = NativeReplacements.MonoGetX11Window(newValue);
NativeX11Methods.XSetWMHints(NativeReplacements.MonoGetDisplayHandle(), NativeReplacements.MonoGetX11Window(x11Handle), ref wmhints);
}
