Keysight Technologies InfiniiVision 4000 X Series Programmer's Manual

Also see for InfiniiVision 4000 X Series: Programmer's guide

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1662 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide44 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 BasicTo 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 LibrariesSuite 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 thechanges.7 Run the program.