RoundRectangle controls
The Corner Height property sets the radius of the vertical part of the corners of a RoundRectangle control. The radius is in PowerBuilder units.
To set the CornerHeight property:
Enter an integer in the CornerHeight field on the General page of the control’s Properties view.
The CornerHeight property takes an integer. This example sets the corner height for a RoundRectangle rr_1:
rr_1.CornerHeight = 10