Signature for a function called on each radio button value and data, each time the gimpintradioframe is drawn, to make some radio button insensitive.
If the function returns false, it usually means that the value is not a valid choice in current
situation. In this case, you might want to toggle instead another value automatically. Set new_value to the value to toggle.
If you leave this untouched, the radio button will stay toggled despite being insensitive. This is up to you to decide whether this is
meaningful.
| value |
the value associated with a radio button. |
| new_value |
the value to check instead if the function returns false. |
| data |
the data set in set_sensitivity |
| user_data |
the data associated with a radio button. |
|
true if the button stays sensitive, false otherwise. |