protected void CreateFakeWnd()
{
WNDCLASSEX wndClsEx = new WNDCLASSEX();
wndClsEx.Init();
wndClsEx.style = WndClassType.CS_VREDRAW | WndClassType.CS_HREDRAW;
wndClsEx.lpfnWndProc = m_DefWndProcDelegate;
wndClsEx.cbClsExtra = 0;
wndClsEx.cbWndExtra = 0;
wndClsEx.hInstance = NativeMethods.GetModuleHandle(null);
wndClsEx.hIcon = IntPtr.Zero;
wndClsEx.hIconSm = IntPtr.Zero;
wndClsEx.hCursor = IntPtr.Zero;
wndClsEx.hbrBackground = IntPtr.Zero;
wndClsEx.lpszClassName = m_WndClsName;
wndClsEx.lpszMenuName = null;
bool success = NativeMethods.RegisterClassEx(ref wndClsEx) != 0;
Debug.Assert(success, "RegisterWndClass failed.");
UInt32 dwExStyle = WS_EX.WS_EX_LAYERED |
WS_EX.WS_EX_TRANSPARENT |
WS_EX.WS_EX_NOACTIVATE |
WS_EX.WS_EX_LEFT;
UInt32 dwStyle = (uint)WindowStyle.WS_VISIBLE | (uint)WindowStyle.WS_OVERLAPPED;
m_FakeWndHandle = NativeMethods.CreateWindowEx((Int32)dwExStyle
, m_WndClsName
, null
, (Int32)dwStyle
, this.Left
, this.Top
, m_BgImg.Width
, m_BgImg.Height
, this.Handle
, IntPtr.Zero
, NativeMethods.GetModuleHandle(null)
, IntPtr.Zero
);
Debug.Assert(NativeMethods.IsWindow(m_FakeWndHandle), "CreateWindowEx failed.");
}
