IOCTL_STORAGE_EJECT_MEDIA
The IOCTL_STORAGE_EJECT_MEDIA
DeviceIoControl
operation causes media to be ejected from a SCSI device.
dwIoControlCode = IOCTL_STORAGE_EJECT_MEDIA; // operation code
lpInBuffer = NULL;
// address of input buffer; not used; must be NULL
nInBufferSize = 0;
// size of input buffer; not used; must be zero
lpOutBuffer = NULL; // address of output buffer; not
used; must be NULL
nOutBufferSize = 0; // size of output buffer; not
used; must be zero
lpBytesReturned;
// address of actual bytes of output
Parameters
lpInBuffer
Points to an
input buffer. Not used with this operation. Set to NULL.
nInBufferSize
Specifies the
size, in bytes, of the buffer pointed to by lpInBuffer. Not used with
this operation. Set to zero.
lpOutBuffer
Points to an
output buffer. Not used with this operation. Set to NULL.
nOutBufferSize
Specifies the
size, in bytes, of the buffer pointed to by lpOutBuffer. Not used with
this operation. Set to zero.
lpBytesReturned
Points to a DWORD
that receives the actual size, in bytes, of the data stored into lpOutBuffer.
Return Values
If the
operation succeeds, DeviceIoControl returns TRUE.
If the
operation fails, DeviceIoControl returns FALSE. To get extended error
information, call GetLastError.
Remarks
IOCTL_STORAGE_EJECT_MEDIA
may or may not be supported on SCSI devices that support removable media.
See Also