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Render InkCanvas to image file
// ***************************
// 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);
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