DOT11EXT_SET_KEY_MAPPING_KEY callback function

Important  The Native 802.11 Wireless LAN interface is deprecated in Windows 10 and later. Please use the WLAN Device Driver Interface (WDI) instead. For more information about WDI, see WLAN Universal Windows driver model.
The IHV Extensions DLL calls the Dot11ExtSetKeyMappingKey function to add or delete a cipher key from the key-mapping key tables of the wireless LAN (WLAN) adapter. For more information about these key types, see 802.11 Cipher Key Types.


DOT11EXT_SET_KEY_MAPPING_KEY Dot11extSetKeyMappingKey;

DWORD Dot11extSetKeyMappingKey(
  HANDLE hDot11SvcHandle,



The handle used by the operating system to reference the WLAN adapter. This handle value was specified through a previous call to the Dot11ExtIhvInitAdapter IHV Handler function.


A pointer to a DOT11_CIPHER_KEY_MAPPING_KEY_VALUE structure, which defines the cipher key.

Return Value

If the call succeeds, the function returns ERROR_SUCCESS. Otherwise, it returns an error code defined in Winerror.h.


A key-mapping cipher key is deleted from the adapter's key tables if the bDelete member of the DOT11_CIPHER_KEY_MAPPING_KEY_VALUE structure is set to TRUE.

A call to the Dot11ExtSetKeyMappingKey function results in a set request of the OID_DOT11_CIPHER_KEY_MAPPING_KEY object identifier (OID) to the Native 802.11 miniport driver that manages the WLAN adapter.


Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Target Platform Desktop
Header wlanihv.h (include Wlanihv.h)

See Also


802.11 Cipher Key Types