ImageList_Draw() private method

private ImageList_Draw ( HandleRef himl, int i, HandleRef hdcDst, int x, int y, int fStyle ) : bool
himl System.Runtime.InteropServices.HandleRef
i int
hdcDst System.Runtime.InteropServices.HandleRef
x int
y int
fStyle int
return bool
UnsafeNativeMethods Class Documentation
Esempio n. 1
0
        public static ImageList GetImageList(object imageListAsPointer)
        {
            ImageList images = null;

            IntPtr    intPtr     = new IntPtr((int)imageListAsPointer);
            HandleRef hImageList = new HandleRef(null, intPtr);
            int       count      = UnsafeNativeMethods.ImageList_GetImageCount(hImageList);

            if (count > 0)
            {
                // Create a bitmap big enough to hold all the images
                Bitmap   b = new Bitmap(16 * count, 16);
                Graphics g = Graphics.FromImage(b);

                // Loop through and extract each image from the imagelist into our own bitmap
                IntPtr hDC = IntPtr.Zero;
                try
                {
                    hDC = g.GetHdc();
                    HandleRef handleRefDC = new HandleRef(null, hDC);
                    for (int i = 0; i < count; i++)
                    {
                        UnsafeNativeMethods.ImageList_Draw(hImageList, i, handleRefDC, i * 16, 0, NativeMethods.ILD_NORMAL);
                    }
                }
                finally
                {
                    if (g != null && hDC != IntPtr.Zero)
                    {
                        g.ReleaseHdc(hDC);
                    }
                }

                // Create a new imagelist based on our stolen images
                images            = new ImageList();
                images.ColorDepth = ColorDepth.Depth24Bit;
                images.ImageSize  = new Size(16, 16);
                images.Images.AddStrip(b);
            }
            return(images);
        }