ovrAchievementUpdateHandle Typedef
Represents an update to an existing achievement. It will be the payload if there is any updates on achievements, as unlocking an achievement by ovr_Achievements_Unlock(), adding 'count' to the achievement by ovr_Achievements_AddCount(), and unlocking fields of a BITFIELD achievement by ovr_Achievements_AddFields().
typedef struct ovrAchievementUpdate* ovrAchievementUpdateHandle