protected override void OnSourceInitialized(EventArgs e)
{
IntPtr hWnd = (new WindowInteropHelper(this)).Handle;
IntPtr style = MyWin32Interop.GetWindowLongPtr(hWnd, MyWin32Interop.GWL_EXSTYLE);
style = (IntPtr)((int)style | MyWin32Interop.ExtendedWindowStyles.WS_EX_DLGMODALFRAME);
MyWin32Interop.SetWindowLongPtr(hWnd, MyWin32Interop.GWL_EXSTYLE, style);
if (m_DisableCloseButton)
{
style = MyWin32Interop.GetWindowLongPtr(hWnd, MyWin32Interop.GWL_STYLE);
style = (IntPtr)((int)style & ~MyWin32Interop.WindowStyles.WS_SYSMENU);
MyWin32Interop.SetWindowLongPtr(hWnd, MyWin32Interop.GWL_STYLE, style);
}
}
