Skybound.Gecko.GeckoWebBrowser.CanPerform C# (CSharp) Method

        bool CanPerform(CanPerformMethod method)
        {
            // in xulrunner (tested on version 5.0)
            // nsIController.IsCommandEnabled("cmd_copyImageContents") can return E_FAIL when clicking on certain objects.
            // this seems to me like a xulrunner bug.
            try
            {
                return method();
            }
            catch (COMException e)
            {
                if ((e.ErrorCode & 0xFFFFFFFF) != 0x80004005)
                    throw e;

                return false;
            }
        }