public static void DrawImage(Graphics graphics, Image image, Point point, bool disabled)
{
if (!disabled)
{
Rectangle destination = new Rectangle(point, image.Size);
graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel);
}
else
{
// Painting a disabled gray scale image is done using ILS_SATURATE on WinXP.
// This code emulates that behaviour if comctl32 version 6 is not availble.
NativeMethods.DLLVERSIONINFO dvi = new NativeMethods.DLLVERSIONINFO();
dvi.cbSize = Marshal.SizeOf(typeof(NativeMethods.DLLVERSIONINFO));
NativeMethods.DllGetVersion(ref dvi);
if (dvi.dwMajorVersion < 6)
{
ImageAttributes attributes = new ImageAttributes();
Rectangle destination = new Rectangle(point, image.Size);
float[][] matrix = new float[5][];
matrix[0] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
matrix[1] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
matrix[2] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
matrix[3] = new float[] { 0.3333f, 0.3333f, 0.3333f, 0.7500f, 0.0000f };
matrix[4] = new float[] { 0.0000f, 0.0000f, 0.0000f, 0.0000f, 1.0000f };
attributes.SetColorMatrix(new ColorMatrix(matrix));
graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);
}
else
{
ImageList imageList = new ImageList();
imageList.ImageSize = image.Size;
imageList.ColorDepth = ColorDepth.Depth32Bit;
imageList.Images.Add(image);
IntPtr hdc = graphics.GetHdc();
NativeMethods.IMAGELISTDRAWPARAMS ildp = new NativeMethods.IMAGELISTDRAWPARAMS();
ildp.cbSize = Marshal.SizeOf(typeof(NativeMethods.IMAGELISTDRAWPARAMS));
ildp.himl = imageList.Handle;
ildp.i = 0; // image index
ildp.hdcDst = hdc;
ildp.x = point.X;
ildp.y = point.Y;
ildp.cx = 0;
ildp.cy = 0;
ildp.xBitmap = 0;
ildp.yBitmap = 0;
ildp.fStyle = NativeMethods.ILD_TRANSPARENT;
ildp.fState = NativeMethods.ILS_SATURATE;
ildp.Frame = -100;
NativeMethods.ImageList_DrawIndirect(ref ildp);
graphics.ReleaseHdc(hdc);
}
}
}