IOCTL_CDROM_SET_VOLUME IOCTL (ntddcdrm.h)
Resets the volume for its device's audio ports. Obsolete, beginning with Windows Vista.
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.
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Obsolete, beginning with Windows Vista. |
| Header | ntddcdrm.h (include Ntddcdrm.h) |
See also
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