Returns the current value for the requested axis.
This function must be called from the handler of one of the [[email protected]:GtkGestureStylus:down], [
[email protected]:GtkGestureStylus:motion], [[email protected]:GtkGestureStylus:up] or [
[email protected]:GtkGestureStylus:proximity] signals.
| this |
a `GtkGestureStylus` |
| axis |
requested device axis |
| value |
return location for the axis value |
|
true if there is a current value for the axis |