2.2.3.20 CPMGetApproximatePositionOut
The CPMGetApproximatePositionOut message replies to a CPMGetApproximatePositionIn message describing the approximate position of the bookmark in the chapter. The format of the CPMGetApproximatePositionOut message that follows the header is shown in the following diagram.
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_numerator (4 bytes): A 32-bit unsigned integer containing the row number of the bookmark in the rowset. If there are no rows, this field MUST be set to 0x00000000.
_denominator (4 bytes): A 32-bit unsigned integer containing the number of rows in the rowset.