void CenterRectAACelInDisplay (CCB *cel)
The ccb_XPos and ccb_YPos fields in both the data and alpha- channel CCBs are modified. Other CCB fields are not modified.The centering is based on the cel's projected size, not its source data size. If the cel is projected to a non-rectangular shape, the result is invalid.
CenterRectCelInDisplay
, CenterRectCelListInDisplay