IOCTL_POINT_OF_SERVICE_GET_PROPERTY IOCTL (pointofservicedriverinterface.h)

This I/O control function returns the value of the specified property from the device driver.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

Pointer to a buffer that contains the PosPropertyId for the property you want to get.

Input buffer length

Size, in bytes, of the buffer pointed to by lpInBuffer. Set to sizeof(PosPropertyId).

Output buffer

Pointer to a buffer that receives the property value.

Output buffer length

Size, in bytes, of the buffer pointed to by lpOutBuffer.

Status block

Returns TRUE if successful; otherwise, returns FALSE.

Remarks

To get extended error information, call GetLastError. The following list shows common error values (other status values may be returned as defined by your GET property callback implementation):

• STATUS_ACCESS_DENIED: The calling thread does not have a claim on the device.

• STATUS_BUFFER_OVERFLOW: The output buffer is not large enough to contain the output value. The driver will copy as much data into the output buffer as possible.

Requirements