[ CCode ( instance_pos = 2.9 ) ]
public delegate string ScaleFormatValueFunc (Scale scale, double value)
Function that formats the value of a scale.
See [method@Gtk.Scale.set_format_value_func].
| scale |
The `GtkScale` |
| value |
The numeric value to format |
| user_data |
user data |
|
A newly allocated string describing a textual representation of the given numerical value. |