typedef enum _J2KREGIONOFINTEREST
J2K_USE_LEAD_REGION = 0, // Use LEAD bitmap region
J2K_USE_OPTION_RECT = 1, // Use rcROI member of FILEJ2KOPTIONS
The J2KREGIONOFINTEREST data type is used within the FILEJ2KOPTIONS structure to indicate how to define the region of interest.
If J2K_USE_LEAD_REGION is used, then any region shape is acceptable. It will be converted internally by the filter to a rectangle.