public static IntPtr MyRegisterWndClass(string className, IntPtr hInstance)
{
WNDCLASSEX wcex = new WNDCLASSEX();
wcex.cbSize = Marshal.SizeOf(typeof(WNDCLASSEX));
wcex.hInstance = hInstance;
wcex.lpszClassName = className;
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.hbrBackground = (IntPtr)(COLOR_WINDOW + 1);
wcex.lpfnWndProc = MyWndProc;
return(RegisterClassEx(ref wcex));
}
public extern static IntPtr RegisterClassEx(ref WNDCLASSEX wndclassex);
