WlanOpenHandle function (wlanapi.h)
The WlanOpenHandle function opens a connection to the server.
DWORD WlanOpenHandle( [in] DWORD dwClientVersion, PVOID pReserved, [out] PDWORD pdwNegotiatedVersion, [out] PHANDLE phClientHandle );
The highest version of the WLAN API that the client supports.
||Client version for Windows XP with SP3 and Wireless LAN API for Windows XP with SP2.|
||Client version for Windows Vista and Windows Server 2008|
Reserved for future use. Must be set to NULL.
The version of the WLAN API that will be used in this session. This value is usually the highest version supported by both the client and server.
A handle for the client to use in this session. This handle is used by other functions throughout the session.
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.
||pdwNegotiatedVersion is NULL, phClientHandle is NULL, or pReserved is not NULL.|
||Failed to allocate memory to create the client context.|
||Various error codes.|
||Too many handles have been issued by the server.|
The version number specified by dwClientVersion and pdwNegotiatedVersion is a composite version number made up of both major and minor versions. The major version is specified by the low-order word, and the minor version is specified by the high-order word. The macros
WLAN_API_VERSION_MINOR(_v) return the major and minor version numbers respectively. You can construct a version number using the macro
Windows XP with SP3 and Wireless LAN API for Windows XP with SP2: WlanOpenHandle will return an error message if the Wireless Zero Configuration (WZC) service has not been started or if the WZC service is not responsive.
|Minimum supported client||Windows Vista, Windows XP with SP3 [desktop apps only]|
|Minimum supported server||Windows Server 2008 [desktop apps only]|
|Header||wlanapi.h (include Wlanapi.h)|
|Redistributable||Wireless LAN API for Windows XP with SP2|