Exemplo n.º 1
0
        void GetIcon(ISession session, string iconExtension)
        {
            var iconHandle = IntPtr.Zero;

            try
            {
                for (var i = 0; i < 4; i++)
                {
                    var shinfo = new Api.SHFILEINFO();
                    Api.SHGetFileInfo(iconExtension,
                                      Api.FILE_ATTRIBUTE_NORMAL, ref shinfo, (uint)Marshal.SizeOf(shinfo),
                                      (int)(Api.SHGetFileInfoConstants.SHGFI_ICON |
                                            Api.SHGetFileInfoConstants.SHGFI_SMALLICON |
                                            Api.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES |
                                            Api.SHGetFileInfoConstants.SHGFI_TYPENAME));
                    if (shinfo.hIcon == IntPtr.Zero)
                    {
                        var watt = Marshal.GetLastWin32Error();
                        if (watt == 997)
                        {
                            Thread.Sleep(20);
                            continue;
                        }
                        throw new Exception("Fehler");
                    }
                    iconHandle = shinfo.hIcon;
                    break;
                }

                using (var icon = Icon.FromHandle(iconHandle))
                {
                    using (var bitmap = icon.ToBitmap())
                    {
                        var ms = new System.IO.MemoryStream();
                        bitmap.Save(ms, ImageFormat.Png);
                        ms.Position = 0;
                        session.SendStream(ms, "image/png", Constants.NotModified, false);
                    }
                }
            }
            catch (Exception)
            {
                session.SendError("Nicht gefunden", "Nicht gefunden", 404, "Not Found");
            }
            finally
            {
                Api.DestroyIcon(iconHandle);
            }
        }
Exemplo n.º 2
0
        public static ImageBrush ExtractIcon(string name)
        {
            var shinfo = new Api.SHFILEINFO();
            var ptr    = Api.SHGetFileInfo(name,
                                           Api.FILE_ATTRIBUTE_NORMAL, ref shinfo, (uint)Marshal.SizeOf(shinfo),
                                           (int)(Api.SHGetFileInfoConstants.SHGFI_ICON |
                                                 Api.SHGetFileInfoConstants.SHGFI_SMALLICON |
                                                 Api.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES |
                                                 Api.SHGetFileInfoConstants.SHGFI_TYPENAME));
            var icon = Icon.FromHandle(shinfo.hIcon).Clone() as Icon;

            Api.DestroyIcon(shinfo.hIcon);
            var brush = CreateBrush(icon);

            icon.Dispose();
            return(brush);
        }