View source for RPC HELP M Entry Input Parameters

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<H2>Input Parameters (Optional)</H2>
The M entry point for an RPC can optionally have input parameters (i.e., beyond the first parameter, which is always used to return an output value). The client passes data to your M entry point through these parameters.
	
The client can send data to an RPC (and therefore your entry point) in one of the following three [[RPC_HELP_TRPCBroker_Param|Param]] types:

* '''Param PType''' -- '''Param Value'''
** '''LITERAL''' -- Delphi string value, passed as a string literal to the VistA M Server.
** '''REFERENCE''' -- Delphi string value, treated on the VistA M Server as an M variable name and resolved from the symbol table at the time the RPC executes.
** '''LIST''' -- A single-dimensional array of strings in the [[RPC_HELP_TParamRecord_Mult_Property|Mult]] property of the [[RPC_HELP_TRPCBroker_Param|Param]] property, passed to the VistA M Server where it is placed in an array. String subscripting can be used.
	

The type of the input parameters passed in the [[RPC_HELP_TRPCBroker_Param|Param]] property of the [[RPC_HELP_TRPCBroker|TRPCBroker]] component determines the format of the data you must be prepared to receive in your M entry point.