Redraw of MenuItem in open toolbar

[Gintaras]

In any case this can be useful.

Code:

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// script "Change toolbar button text2.cs"
using Au.Triggers;
using System.Windows.Threading;

class Program {
    ConcurrentDictionary<string, MyToolbarData> _toolbars = new();
    
    static void Main(string[] a) => new Program(a);
    Program(string[] args) {
        run.thread(_Thread);
        
        var b = new wpfBuilder("Window").WinSize(400);
        b.R.AddButton("Change toolbar button text", _ => { _ChangeButtonText(); });
        b.R.AddOkCancel();
        b.End();
        if (!b.ShowDialog()) return;
    }
    
    void _Thread() {
        var synCon = new DispatcherSynchronizationContext();
        SynchronizationContext.SetSynchronizationContext(synCon);
        
        ActionTriggers Triggers = new();
        Triggers.Options.ThreadOfTriggers();
        Triggers.Window[TWEvent.VisibleOnce, "LibreAutomate", flags: TWFlags.RunAtStartup] = _Toolbar;
        Triggers.Run();
        
        void _Toolbar(WindowTriggerArgs ta) {
            toolbar t = new("sgcqjw8d6dw", TBCtor.DontSaveSettings) { ActionThread = false };
            t["Aaaaa"] = o => { };
            t["Bbbbb"] = o => { };
            TBItem button = t.Last;
            t["Cccc"] = o => { };
            
            _toolbars["unique name"] = new(t, button, synCon);
            t.Closed += () => { _toolbars.Remove("unique name", out _); };
            
            t.Show(ta);
        }
    }
    
    void _ChangeButtonText() {
        var q = _toolbars["unique name"];
        q.threadContext.Post(_ => { //runs in the toolbar's thread
            q.button.Text = "New longer text";
            q.tb.DisplayText ^= true; q.tb.DisplayText ^= true; //a workaround to remeasure and redraw the toolbar. Don't need in next LA.
        }, null);
    }
}

record class MyToolbarData(toolbar tb, TBItem button, SynchronizationContext threadContext);