IOCTL_CDROM_GET_CONTROL IOCTL (ntddcdrm.h)

This IOCTL request is obsolete. Do not use.

Determines the current audio playback mode.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

None.

Input buffer length

None.

Output buffer

The driver returns the CDROM_AUDIO_CONTROL data in the buffer at Irp->AssociatedIrp.SystemBuffer.

Output buffer length

Parameters.DeviceIoControl.OutputBufferLength in the I/O stack location indicates the size, in bytes, of the buffer, which must be >= sizeof(CDROM_AUDIO_CONTROL).

Status block

The Information field is set to the number of bytes returned. The Status field is set to STATUS_SUCCESS, or possibly to STATUS_BUFFER_TOO_SMALL, STATUS_DEVICE_NOT_READY, STATUS_IO_DEVICE_ERROR, STATUS_IO_TIMEOUT, STATUS_INSUFFICIENT_RESOURCES, STATUS_VERIFY_REQUIRED, or STATUS_INVALID_DEVICE_REQUEST.

Requirements

See also

CDROM_AUDIO_CONTROL