How can I avoid from being see the thick rectangle around a control when selecting the control at run time when the application is running?

This is not my control I downloaded it from this page :

Advanced TrackBar

Then I dragged it to form1 designer from the toolbox.

When the application is running and I use the trackBar at some point it’s like I selected the control and it’s showing the selected rectangle around it.

and if I select/use another control at runtime the rectangle around the trackBar still exist.

>Solution :

At the bottom of the OnPaint override method in the MACTrackBar.cs file, comment out these lines:

// Draws a focus rectangle
// if(this.Focused)
//   ControlPaint.DrawFocusRectangle(e.Graphics, 
//                                   Rectangle.Inflate(this.ClientRectangle, -2, -2));