IOCTL_POINT_OF_SERVICE_UPDATE_STATISTICS IOCTL (pointofservicedriverinterface.h)

This I/O control function sets the specified statistic to the value in the input buffer.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

PosStatisticsHeader where PosStatisticsHeader.EntryCount is set to the number of statistics to update.

This structure is then followed by a corresponding number of PosValueStatisticsEntry structures that contain the name of a statistic and the corresponding value to which it will be updated.

Input buffer length

The sizeof(PosStatisticsHeader) + PosStatisticsHeader.EntryCount * sizeof(PosValueStatisticsEntry).

Output buffer

Not used with this operation; set to NULL.

Output buffer length

Not used with this operation; set to 0 (zero).

Status block

Returns TRUE if successful; otherwise, returns FALSE.

Remarks

To get extended error information, call GetLastError. The following is a common error value:

• STATUS_NOT_SUPPORTED: Statistic updating or reporting is not supported.

Requirements