Keysight Technologies InfiniiVision 4000 X Series

1662 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide
44 Programming Examples
{
strcat(str_out, ", ");
strcat(str_out, str_err_val);
err = viQueryf(vi, ":SYSTem:ERRor?\n", "%t", str_err_val);
if (err != VI_SUCCESS) error_handler();
}
if (strcmp(str_out, "") != 0)
{
printf("INST Error%s\n", str_out);
err = viFlush(vi, VI_READ_BUF);
if (err != VI_SUCCESS) error_handler();
err = viFlush(vi, VI_WRITE_BUF);
if (err != VI_SUCCESS) error_handler();
}
}
/* Handle VISA errors.
* --------------------------------------------------------------- */
void error_handler()
{
char err_msg[1024] = {0};
viStatusDesc(vi, err, err_msg);
printf("VISA Error: %s\n", err_msg);
if (err < VI_SUCCESS)
{
exit(1);
}
}
VISA Example in Visual Basic
To run this example in Visual Basic for Applications:
1 Start the application that provides Visual Basic for Applications (for example,
Microsoft Excel).
2 Press ALT+F11 to launch the Visual Basic editor.
3 Add the visa32.bas file to your project:
a Choose File > Import File....
b Navigate to the header file, visa32.bas (installed with Keysight IO Libraries
Suite and found in the Program Files (x86)\IVI Foundation\VISA\WinNT\
Include), select it, and click Open.
4 Choose Insert > Module.
5 Cut-and-paste the code that follows into the editor.
6 Edit the program to use the VISA address of your oscilloscope, and save the
changes.
7 Run the program.