示例#1
0
        private unsafe void SetIcon(AppIcon icon)
        {
            if (icon == null || icon.Icons.Length == 0)
            {
                Gtk.Window.SetIcon(Handle, IntPtr.Zero);
            }
            else
            {
                IntPtr iconList = IntPtr.Zero;
                var    icons    = new IntPtr[icon.Icons.Length];

                try
                {
                    for (int i = 0; i < icons.Length; i++)
                    {
                        IntPtr iconStream = IntPtr.Zero;
                        try
                        {
                            byte[] data = icon.GetIconData(icon.Icons[i]);
                            fixed(byte *iconDataPtr = data)
                            {
                                iconStream = GLib.CreateStreamFromData((IntPtr)iconDataPtr, data.Length, IntPtr.Zero);
                                icons[i]   = Gdk.Pixbuf.NewFromStream(iconStream, IntPtr.Zero, IntPtr.Zero);
                                iconList   = GLib.ListPrepend(iconList, icons[i]);
                            }
                        }
                        finally { if (iconStream != IntPtr.Zero)
                                  {
                                      GLib.UnrefObject(iconStream);
                                  }
                        }
                    }

                    Gtk.Window.SetIconList(Handle, iconList);
                }
                finally
                {
                    if (iconList != IntPtr.Zero)
                    {
                        GLib.FreeList(iconList);
                    }
                    foreach (var item in icons)
                    {
                        if (item != IntPtr.Zero)
                        {
                            GLib.UnrefObject(item);
                        }
                    }
                }
            }
        }