please dont rip this site Prev Next

LSQuery info  Overview  Group

Notice:This is preliminary documentation for technology that will be supported in future releases of Microsoft Windows.

The LSQuery function returns information about the service provider or the license system context associated with the specified handle obtained by a call to the LSRequest function.


    LS_HANDLE LicenseHandle,

// handle to the license context

    LS_ULONG Information,

// index that identifies the license information

    LS_VOID *InfoBuffer,

// pointer to buffer for returning license information

    LS_ULONG BufferSize,

// maximum size of buffer

    LS_ULONG *ActualBufferSize

// pointer to actual count of characters returned in buffer



[in] Specifies the handle to the license context. This parameter must be a handle created with the LSRequest function.
[in] Specifies the index that identifies the information to be returned.
[out] Points to a buffer in which the resulting information is to be placed.
[in] Specifies, in bytes, the maximum size of the buffer pointed to by the InfoBuffer parameter.
[out] Points to an LS_ULONG value that specifies the actual number of characters returned in the buffer, not including the trailing NULL byte.

Return Values

If the function succeeds, the return value is LS_SUCCESS.

If the function fails, the return value is a status code. For extended error information, call LSGetMessage to return the status text corresponding to the status code. The LSGetMessage function may return one of the following status codes:




The handle used on the call does not describe a valid licensing system context.


The request cannot be completed because of insufficient resources, such as memory.


An invalid index was specified in a call to the LSEnumProviders or the LSQuery function.


The buffer that the Buffer parameter points to is too small to accommodate the text string to be returned; or the challenge data structure is too small to accommodate the challenge response.


One or more of the arguments is incorrect.


The LSQuery function is used to obtain information about the license obtained from a call to the LSRequest function. For example, an application can determine the license type (demo, concurrent, personal, and so forth) and time restrictions.

The buffer should be large enough to accommodate the expected data. If the buffer is too small, then the status code LS_BUFFER_TOO_SMALL is returned and only the number of bytes specified in the parameter BufferSize is returned.

See Also

LSEnumProviders, LSGetMessage, LSRequest 

See also:

file: /Techref/os/win/api/win32/func/src/f55_16.htm, 5KB, , updated: 2000/4/7 12:19, local time: 2022/5/23 16:55,

 ©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=""> LSQuery</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 @20220523
* 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!