IOCTL_INTERNAL_PARCLASS_DISCONNECT - NtDoc

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

// CTL_CODE(0x0016, 0x01f, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_INTERNAL_PARCLASS_DISCONNECT 0x0016007C
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ni-parallel-ioctl_internal_parclass_disconnect)

IOCTL_INTERNAL_PARCLASS_DISCONNECT IOCTL

Major Code:

IRP_MJ_DEVICE_CONTROL

Description

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.

Parameters

Major code

IRP_MJ_INTERNAL_DEVICE_CONTROL

Input buffer

None.

Input buffer length

None.

Output buffer

None.

Output buffer length

None.

Input/output buffer

Input/output buffer length

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.

See also

IOCTL_INTERNAL_PARCLASS_CONNECT

View the official Windows Driver Kit DDI reference

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