Wpf graph with visual host RenderMode.Hardware error

[jiewei_li]

graph rendermode= RenderMode.Hardware

debug error :

 System.Windows.Threading.Dispatcher.Run( );

The calling thread could not access this object because another thread owns the object.

[phansen · Accepted solution]

I was able to reproduce the problem and track it to a non-dispatched internal access to the application's main window, and have created a task to fix this.

We only perform this access once, so as a workaround you can force this initilaization to happen early (before starting the graph on the background thread) by adding this call to the main window's constructor:

    public MainWindow( ) {
        new NationalInstruments.Controls.Primitives.Tables.RenderTargetBitmapWrapper( 1.0, 1.0 );

        InitializeComponent( );
    }

[phansen]

Just wanted to let you know this issue was fixed in the Measurement Studio 2019 release.