Function input_sys::libinput_event_pointer_has_axis
[−]
[src]
pub unsafe extern "C" fn libinput_event_pointer_has_axis(
event: *mut libinput_event_pointer,
axis: libinput_pointer_axis
) -> c_int
@ingroup event_pointer
Check if the event has a valid value for the given axis.
If this function returns non-zero for an axis and libinput_event_pointer_get_axis_value() returns a value of 0, the event is a scroll stop event.
For pointer events that are not of type @ref LIBINPUT_EVENT_POINTER_AXIS, this function returns 0.
@note It is an application bug to call this function for events other than @ref LIBINPUT_EVENT_POINTER_AXIS.
@return Non-zero if this event contains a value for this axis