Drawing to a DrawingContext

A lot of times it is useful to be able to render a bar code directly onto a WPF DrawingContext. This can be done simply by calling the Render method of the desired symbology class.

Measuring the Bar Code

You can retrieve a Size measurement of the bar code for a symbology by calling its BarCodeSymbology.MeasureDesiredSize method.

This sample code measures the bar code symbology in the variable symbology.

Size desiredSize = symbology.MeasureDesiredSize(new Size(double.PositiveInfinity, double.PositiveInfinity));

Rendering the Bar Code

You can render the bar code for a symbology by calling its BarCodeSymbology.Render method and passing it a DrawingContext, location and size.

The Size should be the same size that is retrieved from the MeasureDesiredSize method.

This sample code renders the bar code symbology to a DrawingContext.

symbology.Render(e.DrawingContext, new Point(0, 0), desiredSize);