public static void test01()
{
//initialize the form
var _form = new Form();
Color _color = Color.Black;
_form.FormBorderStyle = FormBorderStyle.None;
_form.ShowInTaskbar = false;
_form.TopMost = true;
_form.Visible = false;
_form.Left = 0;
_form.Top = 0;
_form.Width = 1;
_form.Height = 1;
_form.Hide();
_form.Show();
_form.Opacity = 0.1;
//set popup style
int num1 = Win32Util.GetWindowLong(_form.Handle, -20);
Win32Util.SetWindowLong(_form.Handle, -20, num1 | 0x80);
Win32Util.ShowWindow(_form.Handle, 8);
Win32Util.SetWindowPos(_form.Handle, Win32Util.HWND_TOPMOST, TLX_, TLY_, width_, height_, 0x10);
}
protected override void OnSourceInitialized(EventArgs e)
{
var hwnd = new WindowInteropHelper(this).Handle;
var extendStyle = Win32Util.GetWindowLong(hwnd, -20);
var newStyle = extendStyle | 0x00000080 | 0x08000000;
Win32Util.SetWindowLong(hwnd, -20, newStyle);
Win32Util.SetWindowPos(hwnd, -1, 0, 0, 0, 0, 0x0010 | 0x0002); //TOPMOST SWP_NOACTIVATE NO_MOVE
Height = SystemParameters.MaximizedPrimaryScreenHeight - 14;
base.OnSourceInitialized(e);
}
