#GtkScaleButton provides a button which pops up a scale widget.
This kind of widget is commonly used for volume controls in multimedia
applications, and GTK+ provides a #GtkVolumeButton subclass that
is tailored for this use case.
CSS nodes
GtkScaleButton has a single CSS node with name button. To differentiate
it from a plain #GtkButton, it gets the .scale style class.
The popup widget that contains the scale has a .scale-popup style class.
#GtkScaleButton provides a button which pops up a scale widget. This kind of widget is commonly used for volume controls in multimedia applications, and GTK+ provides a #GtkVolumeButton subclass that is tailored for this use case.
CSS nodes
GtkScaleButton has a single CSS node with name button. To differentiate it from a plain #GtkButton, it gets the .scale style class.
The popup widget that contains the scale has a .scale-popup style class.