Topic: How to update AutoCAD GUI from other threads?

[Andrey Bushman]

Windows 10 x64.
AutoCAD 2024.
.Net Framework 4.8.1
Visual Studio 2022

Custom plugin does some long work in the parallel thread. How to initialize updating the StatusBar custom Pane icon when that thread will be finished? In WPF or WinForms I am to update the GUI from other thead via Dispatcher. But how to get something like Dispatcher for AutoCAD?

Code - C#: [Select]

1. using System.Threading.Tasks;
2. using AcWin = Autodesk.AutoCAD.Windows;
3. using acad = Autodesk.AutoCAD.ApplicationServices.Application;
4. using System.IO;
5. using System.Drawing;
6. using System.Threading;
7.  
8. namespace Bushman.AutoCAD.Examples.Gui {
9.     public static class StatusBarExamples {
10.  
11.         static readonly Icon updateIcon = new Icon(Path.Combine(Path.GetDirectoryName(typeof(StatusBarExamples).Assembly.Location), @"Icons\update_32.ico"));
12.         static readonly Icon downloadIcon = new Icon(Path.Combine(Path.GetDirectoryName(typeof(StatusBarExamples).Assembly.Location), @"Icons\download_32.ico"));
13.         static bool isUpdateIcon = true;
14.  
15.         public static void AddCustomPane() {
16.  
17.             var statusBar = acad.StatusBar;
18.             var doc = acad.DocumentManager.CurrentDocument;
19.  
20.             if (doc == null) return;
21.  
22.             var ed = doc.Editor;
23.  
24.             Icon getIcon() {
25.                 return isUpdateIcon ? updateIcon : downloadIcon;
26.             };
27.  
28.             string getTooltip() {
29.                 return isUpdateIcon ? "Updating is avaliable" : "Updating is downloaded";
30.             };
31.  
32.             var customPane = new AcWin.Pane {
33.                 ToolTipText = getTooltip(),
34.                 Style = AcWin.PaneStyles.Normal | AcWin.PaneStyles.Command,
35.                 Icon = getIcon(),
36.             };
37.  
38.             // It works fine
39.             /* customPane.MouseDown += (o, e) => {
40.                 var pane = o as AcWin.Pane;
41.                 pane.Icon = getIcon();
42.                 pane.ToolTipText = getTooltip();
43.                 isUpdateIcon = !isUpdateIcon;
44.                 statusBar.Update();
45.             }; */
46.  
47.             // It doesn't change the icon and tooltip:
48.             customPane.MouseDown += (o, e) => {
49.                 Task.Run(() => {
50.                     Thread.Sleep(3000); // some long work...
51.  
52.                     // In WPF or WinForms I am to update GUI from other thead via Dispatcher.
53.                     // But how to get something like Dispatcher for AutoCAD?
54.                     var pane = o as AcWin.Pane;
55.                     pane.Icon = getIcon();
56.                     pane.ToolTipText = getTooltip();
57.                     isUpdateIcon = !isUpdateIcon;
58.                     statusBar.Update();
59.                 });
60.             };
61.  
62.             statusBar.Panes.Add(customPane);
63.         }
64.     }
65. }
66.  

Thank you.

[Andrey Bushman]

The problem is solved. Sorry, I can't remove this topic. 

[kdub_nz]

What was the solution Andrey ?