SUB_Q_MEDIA_CATALOG_NUMBER structure (ntddcdrm.h)
The SUB_Q_MEDIA_CATALOG_NUMBER structure contains position information and is used in conjunction with the SUB_Q_CHANNEL_DATA structure.
Syntax
typedef struct _SUB_Q_MEDIA_CATALOG_NUMBER {
SUB_Q_HEADER Header;
UCHAR FormatCode;
UCHAR Reserved[3];
UCHAR Reserved1 : 7;
UCHAR Mcval : 1;
UCHAR MediaCatalog[15];
} SUB_Q_MEDIA_CATALOG_NUMBER, *PSUB_Q_MEDIA_CATALOG_NUMBER;
Members
Header
Indicates, among other things, the length of the Q subchannel data that was retrieved. See SUB_Q_HEADER for further details.
FormatCode
Should have a value of IOCTL_CDROM_MEDIA_CATALOG.
Reserved[3]
Reserved.
Reserved1
Reserved.
Mcval
Indicates that the media catalog number (MCN) data is valid if set to 1; set to zero otherwise.
MediaCatalog[15]
Contains the catalog number if Mcval is set to 1.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddcdrm.h (include Ntddcdrm.h) |