Alpha Transparence problems with Image Class

[Kir Birger]

I've been battling this for a long time, and i managed to get it working with the Icon class, but due to recent changes in a program I'm working on, I now have to keep all my icons as Image class members. This gives me the black border around alpha transparent pixels in my icons. This is the code i'm using: For the API: private static uint SHGFI_ICON = 0x100; // get icon private static uint SHGFI_LARGEICON = 0x0; // get large icon private static uint SHGFI_SMALLICON = 0x1; // get small icon [DllImport("Shell32.dll")] private static extern int SHGetFileInfo( string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, int cbfileInfo, uint uFlags); private struct SHFILEINFO { public IntPtr hIcon; public int iIcon; public int dwAttributes; public string szDisplayName; public string szTypeName; } public enum FileIconSize { Small, // 16x16 pixels Large // 32x32 pixels } public static Image GetFileIcon(string fullpath, FileIconSize size) { SHFILEINFO info = new SHFILEINFO(); uint flags = SHGFI_ICON; //uint flags = SHGFI_ICON|SHGFI_SYSICONINDEX; if (size == FileIconSize.Small) { flags |= SHGFI_SMALLICON; } int retval = SHGetFileInfo(fullpath, 0, ref info, System.Runtime.InteropServices.Marshal.SizeOf(info), flags); if (retval == 0) { return null; // error occured } System.Drawing.Icon icon = System.Drawing.Icon.FromHandle(info.hIcon); System.Windows.Forms.ImageList imgList = new ImageList(); imgList.ColorDepth = ColorDepth.Depth32Bit; imgList.ImageSize = icon.Size; imgList.Images.Add(icon); return imgList.Images[0]; } Actual working code on a Windows Form: Graphics g = Graphics.FromHwnd(this.Handle); g.FillRectangle(System.Drawing.SystemBrushes.ControlDark,20,50,32,32); Image ico; ico = API.GetIcon(ofd1.FileName, API.FileIconSize.Small); g.DrawImage(ico, 20,50); can anyone tell me what i'm doing wrong? i thought i had taken care of all the little possible ways to screw it up, such as converting it to a bitmap...