Exemplo n.º 1
0
        private bool CreateNativeWindow()
        {
            bool      isCreated = false;
            uint      windowStyle;
            uint      windowStyleEx;
            Screen    screen;
            Rectangle rectangle;

            windowStyle   = (uint)WindowStyles.WS_POPUP | (uint)WindowStyles.WS_VISIBLE;
            windowStyleEx = (uint)WindowStylesEx.WS_EX_TOPMOST | (uint)WindowStylesEx.WS_EX_TOOLWINDOW;

            if (!this._transparencyKey.IsEmpty && this.IsLayeringSupported())
            {
                windowStyleEx = (windowStyleEx | (uint)WindowStylesEx.WS_EX_LAYERED);                  // 524288
            }

            screen    = Screen.FromPoint(Control.MousePosition);
            rectangle = screen.WorkingArea;

            int posX = Math.Max(rectangle.X, (rectangle.X + ((rectangle.Width - this._width) / 2)));
            int posY = Math.Max(rectangle.Y, (rectangle.Y + ((rectangle.Height - this._height) / 2)));

            this._hwnd = APIWindow.CreateWindowEx(windowStyleEx, WindowClassName, "", (uint)windowStyle, posX, posY, this._width, this._height, IntPtr.Zero, IntPtr.Zero, APIDynamicLinkLibrary.GetModuleHandle(null), IntPtr.Zero);

            if (this._hwnd != IntPtr.Zero)
            {
                APIWindow.ShowWindow(this._hwnd, 1);
                APIWindow.UpdateWindow(this._hwnd);
                isCreated = true;
            }
            else
            {
                System.Console.WriteLine("Cannot create window. {0}", APIError.FormatMessage(APIError.GetLastError()));
            }

            return(isCreated);
        }