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Call library function node

Hi, I need to call a C++DLL and the functions prototype are
int  GetTNT ( int16 recIdx, int16 fieldIdx, int8* pStatus, int8* pType, char** pszValue);
int GetConfig ( int8 confIdx, int **pszValue);
             In this how to configure for double pointers(inr **pszvalue and char **pszvalue)
   
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Without knowing the details on what those functions do, they're likely just arrays. Use the array data type. Look in the LabVIEW documentation at the topic "Using Arrays and Strings in the Call Library Function Node". Also take a look at the "Call DLL" example that ships with LabVIEW (Help->Find Examples..."
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