Types of contact for an INPUT_CLASS_MTOUCH event
#include <input/event_types.h>
typedef enum {
CONTACT_TYPE_FINGER = 0,
CONTACT_TYPE_STYLUS = 1,
CONTACT_TYPE_HOVERING = 2,
CONTACT_TYPE_GLOVE = 3,
CONTACT_TYPE_LARGE = 4
} contact_type_e;