/**
* <summary>
* Retrieves a digital input chain for a given identifier.
* <para>
* The identifier can be specified using several formats:
* </para>
* <para>
* </para>
* <para>
* - FunctionLogicalName
* </para>
* <para>
* - ModuleSerialNumber.FunctionIdentifier
* </para>
* <para>
* - ModuleSerialNumber.FunctionLogicalName
* </para>
* <para>
* - ModuleLogicalName.FunctionIdentifier
* </para>
* <para>
* - ModuleLogicalName.FunctionLogicalName
* </para>
* <para>
* </para>
* <para>
* This function does not require that the digital input chain is online at the time
* it is invoked. The returned object is nevertheless valid.
* Use the method <c>YInputChain.isOnline()</c> to test if the digital input chain is
* indeed online at a given time. In case of ambiguity when looking for
* a digital input chain by logical name, no error is notified: the first instance
* found is returned. The search is performed first by hardware name,
* then by logical name.
* </para>
* <para>
* If a call to this object's is_online() method returns FALSE although
* you are certain that the matching device is plugged, make sure that you did
* call registerHub() at application initialization time.
* </para>
* <para>
* </para>
* </summary>
* <param name="func">
* a string that uniquely characterizes the digital input chain, for instance
* <c>MyDevice.inputChain</c>.
* </param>
* <returns>
* a <c>YInputChain</c> object allowing you to drive the digital input chain.
* </returns>
*/
public static YInputChain FindInputChain(string func)
{
YInputChain obj;
lock (YAPI.globalLock) {
obj = (YInputChain)YFunction._FindFromCache("InputChain", func);
if (obj == null)
{
obj = new YInputChain(func);
YFunction._AddToCache("InputChain", func, obj);
}
}
return(obj);
}
protected static void yInternalEventCallback(YInputChain obj, String value)
{
obj._internalEventHandler(value);
}