Specifies modes for IG_IP_area_info_get_ex function.

Values:

IG_DIB_AREA_INFO_MIN	The information requested is a minimum pixel value on the area.
IG_DIB_AREA_INFO_MAX	The information requested is a maximum pixel value on the area.
IG_DIB_AREA_INFO_AVE	The information requested is an average pixel value on the area.
IG_DIB_AREA_INFO_CENTER	The information requested is a value of the central pixel in the area.