Create a new DisplayEvent instance.
#include <hnm/display_event.h>
hnm_DisplayEvent* hnm_DisplayEvent_create()
This function allocates a new hnm_DisplayEvent structure and initializes all its members to zero with the exception of the appraise and service callbacks, which will have the correct functions assigned to them.
A pointer to a new hnm_DisplayEvent structure. The memory returned by this function is transferred to the calling context responsible for deleting it.