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CDROM_PERFORMANCE_TYPE enumeration (ntddcdrm.h)

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The CDROM_PERFORMANCE_TYPE enumeration defines the read and write performance data requests. It is a member of the CDROM_PERFORMANCE_REQUEST structure, which is used as an input parameter to the IOCTL_CDROM_GET_PERFORMANCE I/O control request.

Syntax

typedef enum _CDROM_PERFORMANCE_TYPE {
  CdromReadPerformance,
  CdromWritePerformance
} CDROM_PERFORMANCE_TYPE, *PCDROM_PERFORMANCE_TYPE;

Constants

 
CdromReadPerformance
Requests streaming read performance data.
CdromWritePerformance
Requests streaming write performance data.

Requirements

Requirement Value
Header ntddcdrm.h (include Ntddcdrm.h)

See also

CDROM_PERFORMANCE_REQUEST

IOCTL_CDROM_GET_PERFORMANCE