Returns the value of the specified field as RFC_INT
Supported field types:
RFCTYPE_INT
RFCTYPE_INT2
RFCTYPE_INT1
RFCTYPE_BYTE
RFCTYPE_CHAR
RFCTYPE_NUM
RFC_RC SAP_API RfcGetInt (DATA_CONTAINER_HANDLE dataHandle, SAP_UC const* name, RFC_INT *value, RFC_ERROR_INFO* info);