.NET (Core and Framework)

System::Void initialize_thread()
{
    using System::Threading::Thread;
    using System::Threading::ThreadStart;

    draw_images_thread = new Thread(new ThreadStart(this, &PlotDisplayWindow::draw_images));
    draw_images_thread->IsBackground = true;
}

System::Void draw_image(int image_num) {
    picturebox->Image = __try_cast<System::Drawing::Image*>(images_[image_num]);
    Text = filenames_[image_num];
    graphics = this->CreateGraphics();
    graphics->DrawImage(images_[image_num],
                        AutoScrollPosition.X, AutoScrollPosition.Y,
                        images_[image_num]->Width, images_[image_num]->Height);
    graphics->Dispose();
}

__delegate System::Void DrawImageDelegate(int image_num);

System::Void draw_images()
{
    //using System::IAsyncResult;
    using System::Threading::Thread;

    while (running) {
        if (picturebox->InvokeRequired) {
            DrawImageDelegate* draw_image_delegate = new DrawImageDelegate(this, &PlotDisplayWindow::draw_image);
            draw_image_delegate->Invoke(image_number);
            //IAsyncResult* async_result = draw_image_delegate->BeginInvoke(image_number, 0, 0);
            //draw_image_delegate->EndInvoke(async_result);
        }
        else {
            draw_image(image_number);
        }

        Thread::Sleep(sleep_time_ms);

        ++image_number;
        if (image_number == filenames_->Length) {
            image_number = 0;
        }
    }
}

System::Void PlotDisplayWindow_Paint(System::Object* /*sender*/, System::Windows::Forms::PaintEventArgs* e)
{
    using System::Threading::ThreadState;

    if (filenames_->Length > 1) {
        if (draw_images_thread->ThreadState & ThreadState::Suspended) {
            draw_images_thread->Resume();
        }
        else if (draw_images_thread->ThreadState & (ThreadState::Unstarted | ThreadState::Stopped)) {
            initialize_thread();
            draw_images_thread->Start();
        }
    }
    else {
        draw_image(0);
    }
}

************** Exception Text **************
System.InvalidOperationException: The object is currently in use elsewhere.
   at System.Drawing.Image.get_Width()
   at System.Drawing.Image.get_Size()
   at System.Windows.Forms.PictureBox.get_ImageRectangle()
   at System.Windows.Forms.PictureBox.OnPaint(PaintEventArgs pe)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
driver
    Assembly Version: 0.0.0.0
    Win32 Version: 
    CodeBase: file:///C:/Documents%20and%20Settings/kwokmb1/My%20Documents/Work/code/sample_code/PlotDisplay/driver.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
System.Drawing
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------