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VOLUME_CONTROL structure (ntddcdrm.h)

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The VOLUME_CONTROL structure is used in conjunction with the IOCTL_CDROM_GET_VOLUME request to retrieve volume values for up to four audio ports.

Syntax

typedef struct _VOLUME_CONTROL {
  UCHAR PortVolume[4];
} VOLUME_CONTROL, *PVOLUME_CONTROL;

Members

PortVolume[4]

Pointer to an array of volume values, one for each of the ports, with a maximum of four ports.

Requirements

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

See also

IOCTL_CDROM_GET_VOLUME