Kdtop at 16:21, 8 July 2015

2015-07-08T16:21:58Z

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	[[RPC_HELP_Other_DLL_Interface_List\|DLL Interface Home]]		[[RPC_HELP_Other_DLL_Interface_List\|DLL Interface Home]]
			<h2>C: Execute RPCs</h2>
			If you can make a successful connection to the RPC Broker VistA M Server, and create an application context, you can execute any RPCs registered to your context.

			To execute RPCs from your C program:

			'''1.''' Create a character buffer large enough to hold your [[RPC_HELP_RPCs\|RPC]]'s return value:
			static char Value [1024];

			'''2.''' Set the [[RPC_HELP_TRPCBroker_RemoteProcedure\|RemoteProcedure]] property of the TRPCBroker component to the [[RPC_HELP_RPCs\|RPC]] to execute:

			RPCBPropSet(RPCBroker, "RemoteProcedure","XWB GET VARIABLE VALUE");

			'''3.''' Set the [[RPC_HELP_TRPCBroker_Param\|Param]] values for any parameters needed by the [[RPC_HELP_RPCs\|RPC]]. In the following example, one TRPCBroker [[RPC_HELP_TRPCBroker_Param\|Param]] node is set (the equivalent of [[RPC_HELP_TRPCBroker_Param\|Param]][0]):

			'''3a.''' A value of 0 for parameter 2 denotes the integer index of the [[RPC_HELP_TRPCBroker_Param\|Param]] node being set ([[RPC_HELP_TRPCBroker_Param\|Param]][0]).

			'''3b.''' A value of reference for parameter 3 denotes the setting for the equivalent of [[RPC_HELP_TRPCBroker_Param\|Param]][0].[[RPC_HELP_TParamRecord_PType_Property\|PType]]. This uses the enumerated values for [[RPC_HELP_TParamRecord_PType_Property\|PType]] declared in the header file.

			'''3c.''' A value of "DUZ" for parameter 4 denotes that the equivalent of [[RPC_HELP_TRPCBroker_Param\|Param]][0].[[RPC_HELP_TParamRecord_Value_Property\|Value]] is "DUZ":
			RPCBParamSet(RPCBroker, 0, reference, "DUZ");

			'''4.''' Use the RPCBCall method to execute the [[RPC_HELP_RPCs\|RPC]]:
			RPCBCall(RPCBroker, Value);

			The return value from the RPC is returned in the second parameter (in this case, the Value character buffer).

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2015-07-08T16:14:13Z

Created page with " RPC Broker Help Home DLL Interface Home"

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RPC HELP DLL GuideLines C Execute RPCs - Revision history

Kdtop at 16:21, 8 July 2015

Kdtop: Created page with " RPC Broker Help Home DLL Interface Home"