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 = Kernal32Dll.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 = User32Dll.RegisterClassEx(ref wndClsEx) != 0;
Debug.Assert(success, "RegisterWndClass failed.");
UInt32 dwExStyle = ExtendedWndStyle.WS_EX_LAYERED |
ExtendedWndStyle.WS_EX_TRANSPARENT |
ExtendedWndStyle.WS_EX_NOACTIVATE |
ExtendedWndStyle.WS_EX_LEFT;
UInt32 dwStyle = WndStyle.WS_VISIBLE | WndStyle.WS_OVERLAPPED;
m_FakeWndHandle = User32Dll.CreateWindowEx(dwExStyle
, m_WndClsName
, null
, dwStyle
, this.Left
, this.Top
, m_BgImg.Width
, m_BgImg.Height
, this.Handle
, IntPtr.Zero
, Kernal32Dll.GetModuleHandle(null)
, IntPtr.Zero
);
Debug.Assert(User32Dll.IsWindow(m_FakeWndHandle), "CreateWindowEx failed.");
}
public static extern short RegisterClassEx([In] ref WNDCLASSEX lpwcx);
