private static void OnWindowSourceInitialized(object sender, System.EventArgs e)
{
Window window = (Window)sender;
System.IntPtr hWnd = new WindowInteropHelper(window).Handle;
ControlBox.UpdateStyle(window, hWnd);
ControlBox.UpdateExtendedStyle(window, hWnd);
window.SourceInitialized -= new System.EventHandler(ControlBox.OnWindowSourceInitialized);
}
private static void UpdateExtendedStyle(Window window, System.IntPtr hWnd)
{
int style = ControlBox.NativeMethods.GetWindowLong(hWnd, -20);
if (ControlBox.GetHasHelpButton(window))
{
style |= 1024;
}
else
{
style &= 1025;
}
ControlBox.NativeMethods.SetWindowLong(hWnd, -20, style);
}
private static void OnControlBoxChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Window window = d as Window;
if (window != null)
{
System.IntPtr hWnd = new WindowInteropHelper(window).Handle;
if (hWnd == System.IntPtr.Zero)
{
window.SourceInitialized += new System.EventHandler(ControlBox.OnWindowSourceInitialized);
}
else
{
ControlBox.UpdateStyle(window, hWnd);
ControlBox.UpdateExtendedStyle(window, hWnd);
}
}
}
private static void UpdateStyle(Window window, System.IntPtr hWnd)
{
int style = ControlBox.NativeMethods.GetWindowLong(hWnd, -16);
if (ControlBox.GetHasMaximizeButton(window))
{
style |= 65536;
}
else
{
style &= -65537;
}
if (ControlBox.GetHasMinimizeButton(window))
{
style |= 131072;
}
else
{
style &= -131073;
}
ControlBox.NativeMethods.SetWindowLong(hWnd, -16, style);
}