GtkScaleFormatValueFunc

char*
(* GtkScaleFormatValueFunc) (
  GtkScale* scale,
  double value,
  gpointer user_data
)

No description available.

`scale`	`GtkScale`
	The `GtkScale`
	The data is owned by the caller of the function.
`value`	`double`
	The numeric value to format.
`user_data`	`gpointer`
	User data.
	The argument can be `NULL`.
	The data is owned by the caller of the function.

Returns:	`char*`
	A newly allocated string describing a textual representation of the given numerical value.
	The caller of the function takes ownership of the data, and is responsible for freeing it.
	The value is a NUL terminated UTF-8 string.