IOCTL_INTERNAL_PARCLASS_DISCONNECT IOCTL (parallel.h)
The IOCTL_INTERNAL_PARCLASS_DISCONNECT request disconnects a client from a parallel device. After disconnecting from a parallel device, a client must not use any information obtained from a previous IOCTL_INTERNAL_PARCLASS_CONNECT request.
For more information, see Connecting to a Parallel Device.
Major code
IRP_MJ_INTERNAL_DEVICE_CONTROL
Input buffer
None.
Input buffer length
None.
Output buffer
None.
Output buffer length
None.
Status block
The Information member is set to zero.
The Status member is set to one of the generic status values returned by internal device control requests for parallel devices.
Requirements
| Requirement | Value |
|---|---|
| Header | parallel.h (include Parallel.h) |