Intermec 751G user manual

Chapter 3 — Configuring the Computer

Networking APIs

	The API provided by Intermec Technologies exposes a limited set of
	routines that allows a programmer to access and affect the 802.11b/g
	network interface card from within their application. The routines
	provided also reads/writes values to the CE registry that pertain to the
	802.11b/g radio driver. By using the provided functions, a programmer can
	alter the 802.11b/g parameters of Network Name (SSID), WEP keys,
	infrastructure modes, radio channel, and power management modes. A
	programmer can also retrieve network connect status and signal strength
	indication from the RF network card.
	The API is contained within the 80211API.DLL file that should be present
	in any load with the 802.11b/g networking installed.
80211API.DLL	This file is an Intermec authored file that provides the programmer with a set of API calls to
	configure or monitor status of the 802.11b/g network.
80211PM.DLL	This handles profile management for radio configurable values.

URODDSVC.EXE This handles radio configuration and security authentication based on a selected profile. There is a user interface to this service that provides status of the supplicant as well as status of the 80211b/g authentication process.

ZNICZIO.DLL A replacement for NDISUIO.DLL that supports the Funk Supplicant.

The Profile Manager supports up to four radio configuration profiles. These profiles are the same as those set by the Wireless Network control panel applet that runs on the Windows CE unit. You can configure different 802.11b/g profiles and switch between them using the 802.11 API. See “ConfigureProfile()” on page 92 for more information.

Basic Connect/Disconnect Functions

Below are functions available for the 751G when enabled with the 802.11b/g radio module.

RadioConnect()

Connects to the available radio. Use this function if you plan on using a lot of API calls that talk directly to the radio. Note that the 802.11b/g radio must be enabled via NDISTRAY before you can connect to it.

Syntax	UINT RadioConnect( );
Parameters	None.
Return Values	ERROR_SUCCESS when successful, otherwise
	ERR_CONNECT_FAILED
Remarks	Call this function before you call any other function found within this
	API. It hunts out and connects to the 802.11b/g radio available on the
	system. Check extended error codes if it returns anything for information.
Definitions	#ifdef DYNAMIC_LOADING
	typedef UINT (*PFN_RadioConnect)();
	#else
	UINT RadioConnect();
	#endif

78 751G Color Mobile Computer User’s Manual