Edit

WlanCloseHandle function (wlanapi.h)

  • Article

The WlanCloseHandle function closes a connection to the server.

Syntax

DWORD WlanCloseHandle(
  [in] HANDLE hClientHandle,
       PVOID  pReserved
);

Parameters

[in] hClientHandle

The client's session handle, which identifies the connection to be closed. This handle was obtained by a previous call to the WlanOpenHandle function.

pReserved

Reserved for future use. Set this parameter to NULL.

Return value

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value may be one of the following return codes.

Return code Description
ERROR_INVALID_PARAMETER
 hClientHandle is NULL or invalid, or pReserved is not NULL.
ERROR_INVALID_HANDLE
 The handle hClientHandle was not found in the handle table.
RPC_STATUS
 Various error codes.

Remarks

After a connection has been closed, any attempted use of the closed handle can cause unexpected errors. Upon closing, all outstanding notifications are discarded.

Do not call WlanCloseHandle from a callback function. If the client is in the middle of a notification callback when WlanCloseHandle is called, the function waits for the callback to finish before returning a value. Calling this function inside a callback function will result in the call never completing. If both the callback function and the thread that closes the handle try to acquire the same lock, a deadlock may occur. In addition, do not call WlanCloseHandle from the DllMain function in an application DLL. This could also cause a deadlock.

Requirements

Requirement Value
Minimum supported client Windows Vista, Windows XP with SP3 [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header wlanapi.h (include Wlanapi.h)
Library Wlanapi.lib
DLL Wlanapi.dll
Redistributable Wireless LAN API for Windows XP with SP2

See also

WlanOpenHandle