GestureDrag

Object Hierarchy:

Object hierarchy for GestureDrag

Description:

[ CCode ( type_id = "gtk_gesture_drag_get_type ()" ) ]
public class GestureDrag : GestureSingle

GestureDrag is a Gesture implementation that recognizes drag operations.

The drag operation itself can be tracked throughout the drag_begin, drag_update and drag_end signals, or the relevant coordinates be extracted through get_offset and get_start_point.

All known sub-classes:

Namespace: Gtk
Package: gtk4

Content:

Creation methods:

Methods:

  • public bool get_offset (out double x, out double y)
    If the this is active, this function returns true and fills in x and y with the coordinates of the current point, as an offset to the starting drag point.
  • public bool get_start_point (out double x, out double y)
    If the this is active, this function returns true and fills in x and y with the drag start coordinates, in window-relative coordinates.

Signals:

  • public signal void drag_begin (double start_x, double start_y)
    This signal is emitted whenever dragging starts.
  • public signal void drag_end (double offset_x, double offset_y)
    This signal is emitted whenever the dragging is finished.
  • public signal void drag_update (double offset_x, double offset_y)
    This signal is emitted whenever the dragging point moves.

Inherited Members:

All known members inherited from class Gtk.GestureSingle
All known members inherited from class Gtk.Gesture
All known members inherited from class Gtk.EventController
All known members inherited from class GLib.Object