Render InkCanvas to image file

code.cs

// ***************************
// SOURCE - https://github.com/hassan-theitguy/WpfDrawingApp/blob/1b21dcc4ef3da2fa15e26087d4087d135139f7be/WpfDrawingApp/MainWindow.xaml.cs
// ***************************

// If I render the canvas directly the result includes the left menu area (and is blank).
// Got the idea from online to copy to a DrawingVisual and then render that.

DrawingVisual Drawing = new DrawingVisual();

// How come DrawingArea width is of type double?
// Does converting to int affect the render in any way?

int width = (int)DrawingArea.ActualWidth;
int height = (int)DrawingArea.ActualHeight;

using (DrawingContext DrawingContext = Drawing.RenderOpen())
{
    VisualBrush Brush = new VisualBrush();
    Brush.AutoLayoutContent = true;
    Brush.Visual = DrawingArea;

    DrawingContext.DrawRectangle(Brush, null, new Rect(0, 0, width, height));
}

// Read that "96 is the most common dpi for desktop displays."

RenderTargetBitmap bmp = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
bmp.Render(Drawing);