Instructions

Strona 172 z 185

Dystrybucja Conrad Electronic Sp. z o.o., ul. Kniaźnina 12, 31-637 Kraków, Polska

www.conrad.pl

unsigned long m_findList_usbtmc;

unsigned long m_nCount;

ViStatus status;

int m_Timeout = 7000;

char *pStrout; // Write out data buffer

BYTE pStrin[64]; // Read in data buffer

int len;

ULONG nWritten;

ULONG nRead = 0;

char buffer[256];

char instrDescriptor[256];

// Load the NI-VISA library for USBTMC device

hUSBTMCLIB = LoadLibrary ("visa32.dll");

if (!hUSBTMCLIB)

{

MessageBox(NULL, "NIVISA for USBTMC library not found.", "2100 multimeter

device test", MB_OK);

return;

}

// Link the libraries

signed long (__stdcall *PviOpenDefaultRM_usb)(unsigned long *vi);

signed long (__stdcall *PviFindRsrc_usb)(unsigned long sesn, char *expr,

unsigned long *vi, unsigned long *retCnt, char far desc[]);

signed long (__stdcall *PviOpen_usb)(unsigned long sesn, char *name,

unsigned long mode, unsigned long timeout, unsigned long *vi);