IOCTL_CDROM_SET_VOLUME - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ntddcdrm.h

// CTL_CODE(0x0002, 0x00a, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_CDROM_SET_VOLUME 0x00024028
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Windows Driver Kit DDI reference (ni-ntddcdrm-ioctl_cdrom_set_volume)

IOCTL_CDROM_SET_VOLUME IOCTL

Description

Resets the volume for its device's audio ports. Obsolete, beginning with Windows Vista.

Parameters

Major code

Input buffer

The buffer at Irp->AssociatedIrp.SystemBuffer contains the VOLUME_CONTROL value or values to be set.

Input buffer length

Parameters.DeviceIoControl.InputBufferLength in the I/O stack location indicates the size, in bytes, of the buffer, which must be greater than or equal to sizeof(VOLUME_CONTROL).

Output buffer

None.

Output buffer length

None.

Input/output buffer

Input/output buffer length

Status block

The Information field is set to zero. The Status field is set to STATUS_SUCCESS, or possibly to STATUS_BUFFER_TOO_SMALL, STATUS_DEVICE_NOT_READY, STATUS_IO_TIMEOUT, STATUS_IO_DEVICE_ERROR, STATUS_VERIFY_REQUIRED, or STATUS_INVALID_DEVICE_REQUEST.

Remarks

Beginning with Windows Vista, CDROM class drivers do not use this IOCTL. Prior to Windows Vista, this IOCTL was used for audio playback on older CD-ROM drives that supported direct audio output in hardware.

Client applications should use the Media Control Interface (MCI) API rather than issuing this IOCTL.

See also

VOLUME_CONTROL

View the official Windows Driver Kit DDI reference

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