Exemplo n.º 1
0
        private void CreateMessageWindow()
        {
            // Ensure that the delegate doesn't get garbage collected by storing it as a field.
            this.wndProcDelegate = new UnmanagedMethods.WndProc(this.WndProc);

            UnmanagedMethods.WNDCLASSEX wndClassEx = new UnmanagedMethods.WNDCLASSEX
            {
                cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.WNDCLASSEX)),
                lpfnWndProc = this.wndProcDelegate,
                hInstance = Marshal.GetHINSTANCE(this.GetType().Module),
                lpszClassName = "PerspexMessageWindow",
            };

            ushort atom = UnmanagedMethods.RegisterClassEx(ref wndClassEx);

            if (atom == 0)
            {
                throw new Win32Exception();
            }

            this.hwnd = UnmanagedMethods.CreateWindowEx(0, atom, null, 0, 0, 0, 0, 0, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);

            if (this.hwnd == IntPtr.Zero)
            {
                throw new Win32Exception();
            }
        }
Exemplo n.º 2
0
        private void CreateWindow()
        {
            // Ensure that the delegate doesn't get garbage collected by storing it as a field.
            this.wndProcDelegate = new UnmanagedMethods.WndProc(this.WndProc);

            this.className = Guid.NewGuid().ToString();

            UnmanagedMethods.WNDCLASSEX wndClassEx = new UnmanagedMethods.WNDCLASSEX
            {
                cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.WNDCLASSEX)),
                style = 0,
                lpfnWndProc = this.wndProcDelegate,
                hInstance = Marshal.GetHINSTANCE(this.GetType().Module),
                hCursor = UnmanagedMethods.LoadCursor(IntPtr.Zero, (int)UnmanagedMethods.Cursor.IDC_ARROW),
                hbrBackground = (IntPtr)5,
                lpszClassName = this.className,
            };

            ushort atom = UnmanagedMethods.RegisterClassEx(ref wndClassEx);

            if (atom == 0)
            {
                throw new Win32Exception();
            }

            this.hwnd = this.CreateWindowOverride(atom);

            if (this.hwnd == IntPtr.Zero)
            {
                throw new Win32Exception();
            }

            this.Handle = new PlatformHandle(this.hwnd, "HWND");
        }
Exemplo n.º 3
0
        private void CreateWindow()
        {
            // Ensure that the delegate doesn't get garbage collected by storing it as a field.
            _wndProcDelegate = new UnmanagedMethods.WndProc(WndProc);

            _className = Guid.NewGuid().ToString();

            UnmanagedMethods.WNDCLASSEX wndClassEx = new UnmanagedMethods.WNDCLASSEX
            {
                cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.WNDCLASSEX)),
                style = 0,
                lpfnWndProc = _wndProcDelegate,
                hInstance = Marshal.GetHINSTANCE(GetType().Module),
                hCursor = DefaultCursor,
                hbrBackground = (IntPtr)5,
                lpszClassName = _className,
            };

            ushort atom = UnmanagedMethods.RegisterClassEx(ref wndClassEx);

            if (atom == 0)
            {
                throw new Win32Exception();
            }

            _hwnd = CreateWindowOverride(atom);

            if (_hwnd == IntPtr.Zero)
            {
                throw new Win32Exception();
            }

            Handle = new PlatformHandle(_hwnd, PlatformConstants.WindowHandleType);
        }
Exemplo n.º 4
0
        private void CreateWindow()
        {
            // Ensure that the delegate doesn't get garbage collected by storing it as a field.
            _wndProcDelegate = new UnmanagedMethods.WndProc(WndProc);

            _className = Guid.NewGuid().ToString();

            UnmanagedMethods.WNDCLASSEX wndClassEx = new UnmanagedMethods.WNDCLASSEX
            {
                cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.WNDCLASSEX)),
                style = 0,
                lpfnWndProc = _wndProcDelegate,
                hInstance = Marshal.GetHINSTANCE(GetType().Module),
                hCursor = DefaultCursor,
                hbrBackground = IntPtr.Zero,
                lpszClassName = _className,
            };

            ushort atom = UnmanagedMethods.RegisterClassEx(ref wndClassEx);

            if (atom == 0)
            {
                throw new Win32Exception();
            }

            _hwnd = CreateWindowOverride(atom);

            if (_hwnd == IntPtr.Zero)
            {
                throw new Win32Exception();
            }

            Handle = new PlatformHandle(_hwnd, PlatformConstants.WindowHandleType);

            var monitor = UnmanagedMethods.MonitorFromWindow(
                _hwnd, 
                UnmanagedMethods.MONITOR.MONITOR_DEFAULTTONEAREST);

            if (UnmanagedMethods.ShCoreAvailable)
            {
                uint dpix, dpiy;
                if (UnmanagedMethods.GetDpiForMonitor(
                        monitor,
                        UnmanagedMethods.MONITOR_DPI_TYPE.MDT_EFFECTIVE_DPI,
                        out dpix,
                        out dpiy) == 0)
                {
                    _scaling = dpix / 96.0;
                }
            }
        }