Kusam-meco M3500A, Operation Manual, Page: 157 / 158

157
short timeout=10000;
short count;
printf("\n ###### Start C++ Example program. ######\n");
printf(" We check the M3500A multimeter on USB port and\n");
printf(" identify the first connected M3500A device.\n\n");
//Initialize
COM
CoInitialize(NULL);
//Create the INS001 IOUtils component
hr =
CoCreateInstance(CLSID_INS001IOUtils,NULL,CLSCTX_INPROC_SERVER,
IID_IOUtils,(LPVOID *)&IIO);
if FAILED(hr)
{
printf("CoCreateInstance
failed\n");
return 0;
}
IIO->Refresh();
IIO->Count(&count);
if ( count == 0 )
{
printf("\n
M3500A USB connect failed (USB).\n");
return 0;
}
// Assigned the first M3500A device (USB port) for command test
IIO->Index(dev_idx);
IIO->TimeOut(&timeout);
// Write command "*IDN?" and read the M3500A identification string
myCmd = "*IDN?";
IIO->Output(_bstr_t(myCmd));
IIO->Input(&bstr);