http://snippets.dzone.com/posts Sun, 18 May 2008 07:08:03 GMT DZone Snippets: opacity code http://snippets.dzone.com/posts/show/3895 <code> <br /> public static Image SetOpacity(Image original, float opacity) <br /> { <br /> Bitmap temp = new Bitmap(original.Width, original.Height); <br /> Graphics g = Graphics.FromImage(temp); <br /> ColorMatrix cm = new ColorMatrix(); <br /> cm.Matrix33 = opacity; <br /> <br /> ImageAttributes ia = new ImageAttributes(); <br /> ia.SetColorMatrix(cm, ColorMatrixFlag.Default, ColorAdjustType.Bitmap); <br /> g.DrawImage(original, new Rectangle(0, 0, temp.Width, temp.Height), 0, 0, original.Width, original.Height, GraphicsUnit.Pixel, ia); <br /> g.Dispose(); <br /> <br /> return temp; <br /> } <br /></code> Tue, 24 Apr 2007 22:46:02 GMT http://snippets.dzone.com/posts/show/3895 mstampar (Miroslav Stampar)