I want to rotate Godrawing objects.
I know Rotate() method and angle property.
however, I want to make the rotate handle to rotate the object freely
(ex. additional rotate handle, or handle change(resize mode -> rotation mode))
(ex. object rotation of Microsoft Powerpoint)
I created my own class.
public class MyDrawing : GoDrawing
please give me some advice and example code for free rotation by dragging the mouse