Exemplo n.º 1
0
        public GhostCursor(Visual visual)
        {
            BitmapSource renderBitmap = CaptureScreen(visual);

            BitmapSource actualCursor = CaptureCursor();

            byte[]          pixels = GetBitmapPixels(actualCursor, (int)actualCursor.Width, (int)actualCursor.Height);
            WriteableBitmap wrbmp  = new WriteableBitmap(renderBitmap);

            wrbmp.WritePixels(new Int32Rect(0, 0, (int)actualCursor.Width, (int)actualCursor.Height), pixels, actualCursor.PixelWidth * actualCursor.Format.BitsPerPixel / 8, 0);

            int width  = renderBitmap.PixelWidth;
            int height = renderBitmap.PixelHeight;
            int stride = width * 4;

            // unfortunately, this byte array will get placed on the large object heap more than likely ...
            pixels = GetBitmapPixels(wrbmp, width, height);

            // -height specifies top-down bitmap
            BITMAPV5HEADER bInfo            = new BITMAPV5HEADER(width, -height, 32);
            IntPtr         ppvBits          = IntPtr.Zero;
            BitmapHandle   dibSectionHandle = null;

            try
            {
                dibSectionHandle = new BitmapHandle(CreateDIBSection(IntPtr.Zero, ref bInfo, DIB_RGB_COLORS, out ppvBits, IntPtr.Zero, 0));

                // copy the pixels into the DIB section now ...
                Marshal.Copy(pixels, 0, ppvBits, pixels.Length);


                if (!dibSectionHandle.IsInvalid && ppvBits != IntPtr.Zero)
                {
                    CreateCursor(width, height, dibSectionHandle);
                }
            }
            finally
            {
                if (dibSectionHandle != null)
                {
                    dibSectionHandle.Dispose();
                }
            }
        }
Exemplo n.º 2
0
        public GhostCursor(Visual visual)
        {
            BitmapSource renderBitmap = CaptureScreen(visual);

            BitmapSource actualCursor = CaptureCursor();
            byte[] pixels = GetBitmapPixels(actualCursor, (int)actualCursor.Width, (int)actualCursor.Height);
            WriteableBitmap wrbmp = new WriteableBitmap(renderBitmap);
            wrbmp.WritePixels(new Int32Rect(0, 0, (int)actualCursor.Width, (int)actualCursor.Height), pixels, actualCursor.PixelWidth * actualCursor.Format.BitsPerPixel / 8, 0);

            int width = renderBitmap.PixelWidth;
            int height = renderBitmap.PixelHeight;
            int stride = width * 4;

            // unfortunately, this byte array will get placed on the large object heap more than likely ...
            pixels = GetBitmapPixels(wrbmp, width, height);

            // -height specifies top-down bitmap
            BITMAPV5HEADER bInfo = new BITMAPV5HEADER(width, -height, 32);
            IntPtr ppvBits = IntPtr.Zero;
            BitmapHandle dibSectionHandle = null;

            try
            {
                dibSectionHandle = new BitmapHandle(CreateDIBSection(IntPtr.Zero, ref bInfo, DIB_RGB_COLORS, out ppvBits, IntPtr.Zero, 0));

                // copy the pixels into the DIB section now ...
                Marshal.Copy(pixels, 0, ppvBits, pixels.Length);

                if (!dibSectionHandle.IsInvalid && ppvBits != IntPtr.Zero)
                {
                    CreateCursor(width, height, dibSectionHandle);
                }
            }
            finally
            {
                if (dibSectionHandle != null)
                {
                    dibSectionHandle.Dispose();
                }
            }
        }
Exemplo n.º 3
0
        private void CreateCursor(int width, int height, BitmapHandle dibSectionHandle)
        {
            BitmapHandle monoBitmapHandle = null;
            try
            {
                monoBitmapHandle = new BitmapHandle(CreateBitmap(width, height, 1, 1, IntPtr.Zero));

                ICONINFO icon = new ICONINFO();
                icon.IsIcon = false;
                icon.xHotspot = 0;
                icon.yHotspot = 0;
                icon.ColorBitmap = dibSectionHandle;
                icon.MaskBitmap = monoBitmapHandle;

                _iconHandle = CreateIconIndirect(ref icon);
                if (!_iconHandle.IsInvalid)
                {
                    _ghostCursor = CursorInteropHelper.Create(_iconHandle);
                }

            }
            finally
            {
                // destroy the temporary mono bitmap now ...
                if (monoBitmapHandle != null)
                {
                    monoBitmapHandle.Dispose();
                }
            }
        }