Handling both GestureStylus and GestureDrag for stylus

Platform
7

Thanks for all of the replies. Took a while to puzzle it all together, but it seems to be working now:

The handlers for the drag events now look something like:

static void drag_begin(GtkGestureDrag *gesture, double x, double y,
    GtkWidget *area) {
  // First check if the event sequence is already handled by the stylus gesture; if not
  // we will handle is here; if it is deny it
  GdkEventSequence* sequence = gtk_gesture_get_last_updated_sequence(GTK_GESTURE(gesture));
  if (gtk_gesture_get_sequence_state(GTK_GESTURE(stylus), sequence) == GTK_EVENT_SEQUENCE_CLAIMED) {
    gtk_gesture_set_sequence_state(GTK_GESTURE(gesture), sequence, GTK_EVENT_SEQUENCE_DENIED);
  } else {
    // handle event
  }
}

Those of the stylus as:

static void stylus_down(GtkGestureStylus* gesture, double x, double y, GtkWidget* area) {
  double pressure;
  // handle event
  // Claim the event sequence; the drag gesture should not handle it
  GdkEventSequence* sequence = gtk_gesture_get_last_updated_sequence(GTK_GESTURE(gesture));
  gtk_gesture_set_sequence_state(GTK_GESTURE(gesture), sequence, GTK_EVENT_SEQUENCE_CLAIMED);
}

I also had to add the stylus gesture after adding the drag gesture as event controller to the drawing area. Am I right in observing the the lastly added event controller is called first?

The full example can be found as a gist here: gtk4_custom_draw_example_with_stylus.cpp · GitHub . Please let me know if you see me doing stupid things.

Thanks again for the help.