Scale.addOnFormatValue

Signal which allows you to change how the scale value is displayed. Connect a signal handler which returns an allocated string representing @value. That string will then be used to display the scale's value.

Here's an example signal handler which displays a value 1.0 as with "-->1.0<--". |[<!-- language="C" --> static gchar* format_value_callback (GtkScale *scale, gdouble value) { return g_strdup_printf ("-->\%0.*g<--", gtk_scale_get_digits (scale), value); } ]|

class Scale
addOnFormatValue
(
string delegate
(
double
,)
dlg
,)

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