| UID | title | description | helpviewer_keywords | old-location | tech.root | ms.assetid | ms.date | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | req.redist | ms.custom | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | ||||||||||||||||||||||||
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NS:nb30._ACTION_HEADER |
ACTION_HEADER (nb30.h) |
The ACTION_HEADER structure contains information about an action. This action is an extension to the standard transport interface. |
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netbios\action_header.htm |
NetBIOS |
f2bbf394-972a-4e96-8cc6-9f230359cbfc |
12/05/2018 |
*PACTION_HEADER, ACTION_HEADER, ACTION_HEADER structure [NetBIOS], MABF, MNBF, MOOO, MXNS, PACTION_HEADER, PACTION_HEADER structure pointer [NetBIOS], nb30/ACTION_HEADER, nb30/PACTION_HEADER, netbios.action_header |
nb30.h |
Windows |
Windows 2000 Professional [desktop apps only] |
Windows 2000 Server [desktop apps only] |
Windows |
ACTION_HEADER, *PACTION_HEADER |
19H1 |
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[Netbios is not supported on Windows Vista, Windows Server 2008, and subsequent versions of the operating system]
The ACTION_HEADER structure contains information about an action. This action is an extension to the standard transport interface.
Specifies the transport provider. This member can be used to check the validity of the request by the transport.
This member is always a four-character string. All strings starting with the letter M are reserved, as shown in the following example.
Windows XP: Certain legacy networking protocols, including NetBEUI, will no longer be supported.
Specifies the action.
Reserved.
The scope of the action is determined by the ncb_lsn and ncb_num members of the NCB structure, as follows.
| ncb_lsn = 0 | ncb_lsn != 0 | |
|---|---|---|
| ncb_num = 0 | Action applies to control channel associated with the valid LAN adapter. | Action applies to connection identifier associated with the valid local session number. |
| ncb_num != 0 | Action applies to address associated with the valid LAN adapter. | Illegal combination. |