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CDROM_PERFORMANCE_EXCEPTION_TYPE enumeration

The CDROM_PERFORMANCE_EXCEPTION_TYPE enumeration defines the exceptional conditions for performance data. 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_EXCEPTION_TYPE { 
  CdromNominalPerformance             = 1,
  CdromEntirePerformanceList          = 2,
     CdromPerformanceExceptionsOnly   = 3
} CDROM_PERFORMANCE_EXCEPTION_TYPE, *PCDROM_PERFORMANCE_EXCEPTION_TYPE;

Constants

CdromNominalPerformance

Requests nominal performance parameters.

CdromEntirePerformanceList

Requests the entire performance list, as qualified by the StartingLba field of the CDROM_PERFORMANCE_REQUEST structure.

CdromPerformanceExceptionsOnly

Requests only performance exceptions that cause the performance to fall outside the nominal.

Requirements

Header

Ntddcdrm.h (include Ntddcdrm.h)

See also

CDROM_PERFORMANCE_REQUEST
IOCTL_CDROM_GET_PERFORMANCE

 

 

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