please dont rip this site Prev Next

WNetCancelConnection info  Overview  Group

The WNetCancelConnection function breaks an existing network connection.

The function is provided for compatibility with earlier versions of Microsoft Windows. For new applications, use the WNetCancelConnection2 function.

DWORD WNetCancelConnection(

    LPTSTR lpName,

// pointer to resource name to be disconnected

    BOOL fForce 

// flag for unconditional disconnect



Points to a null-terminated string that specifies the name of either the redirected local device or the remote network resource to disconnect from. When this parameter specifies a redirected local device, only the specified device redirection is broken. If the parameter specifies a remote network resource, only the connections to remote networks without devices are broken.
Specifies whether the disconnection is to occur even if there are open files or jobs on the connection. If this parameter is FALSE, the function fails if there are open files or jobs.

Return Values

If the function succeeds, the return value is NO_ERROR.

If the function fails, the return value is an error code. To get extended error information, call GetLastError. GetLastError may return one of the following error codes:




The user profile is in an incorrect format.


The system is unable to open the user profile to process persistent connections.


The device is in use by an active process and cannot be disconnected.


A network-specific error occurred. To get a description of the error, use the WNetGetLastError function.


The name specified by the lpName parameter is not a redirected device, or the system is not currently connected to the device specified by the parameter.


There are open files, and the fForce parameter is FALSE.

The function returns error codes for compatibility with Windows version 3.1. For compatibility with the Win32 API, the function also sets the error code value returned by GetLastError.

See Also

WNetAddConnection, WNetAddConnection2, WNetCancelConnection2, WNetGetConnection, WNetGetLastError 

See also:

file: /Techref/os/win/api/win32/func/src/f92.htm, 4KB, , updated: 2000/4/7 12:19, local time: 2022/5/21 14:43,

 ©2022 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF=""> WNetCancelConnection</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.

Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2022 contributors:
o List host: MIT, Site host, Top posters @20220521
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.

Welcome to!