public void PreDrawingLinesOnCanvas(object hostVisual)
{
VisualTarget visualTarget = new VisualTarget((HostVisual)hostVisual);
DrawingCanvas drawingCanvas = new DrawingCanvas();
drawingCanvas.Arrange(new Rect(0, 0, CanvasWidth, CanvasHeight));
visualTarget.RootVisual = drawingCanvas;
DrawingLinesOnCanvas(drawingCanvas);
System.Windows.Threading.Dispatcher.Run();
}