struct Gtk::Range::ChangeValueSignal
- Gtk::Range::ChangeValueSignal
- Struct
- Value
- Object
Overview
Emitted when a scroll action is performed on a range.
It allows an application to determine the type of scroll event that occurred and the resultant new value. The application can handle the event itself and return %TRUE to prevent further processing. Or, by returning %FALSE, it can pass the event to other handlers until the default GTK handler is reached.
The value parameter is unrounded. An application that overrides the ::change-value signal is responsible for clamping the value to the desired number of decimal digits; the default GTK handler clamps the value based on [property@Gtk.Range:round-digits].
Defined in:
auto/gtk-4.0/range.crConstructors
Instance Method Summary
- #[](detail : String) : self
- #connect(&block : Proc(Gtk::ScrollType, Float64, Bool))
- #connect(handler : Proc(Gtk::ScrollType, Float64, Bool))
- #connect(handler : Proc(Gtk::Range, Gtk::ScrollType, Float64, Bool))
- #connect_after(&block : Proc(Gtk::ScrollType, Float64, Bool))
- #connect_after(handler : Proc(Gtk::ScrollType, Float64, Bool))
- #connect_after(handler : Proc(Gtk::Range, Gtk::ScrollType, Float64, Bool))
- #emit(scroll : Gtk::ScrollType, value : Float64) : Nil
- #name