Sets the receiver to show the I-beam cursor while it tracks the mouse.
- macOS 10.0+
The rectangle in which to display the I-beam cursor.
The control that manages the cell.
The receiver must be an enabled and selectable (or editable) text-type cell.
This method is invoked by
reset and in general you do not need to call this method unless you have a custom
NSView that uses a cell.