没有指定填充的C＃DrawElipse方法

Question

Simple Question - How do I use drawing context to make an Ellipse but not fill it with colour?

At the moment I have:

 drawingContext.DrawEllipse(drawBrush, null, jointPoints[jointType],   JointThickness, JointThickness);

This gives me an Ellipse that is filled with colour at every joint position tracked with the Kinect.

I want to display an outter circle without a fill, how can I do this?

For Example like the image above, how would I make the outter circle?

Answer 1

Simply pass null for the brush and pass in a Pen of the desired color instead.

From MSDN :

The brush with which to fill the ellipse. This is optional, and can be null. If the brush is null, no fill is drawn.