As a result, the conditional statement on line 13 evaluates to True, and a second error dialog is displayed. The Err object’s Number property returns a decimal integer, but the WMI SDK generally uses hexadecimal values, so these scripts take a bilingual approach. The TerminateProcess function calls the Terminate method of Win32_Process on the object reference passed to it. If Foo.Bar raises an error, then the first one passes Empty to Blah. Source
Win32_PingStatus has a unique way of calling the equivalent of a method: the ping runs when you call ExecQuery with a WQL query, filtering with WHERE for an Address property whose But since you ask, Doctor Scripto is going out on a limb and speculating that it may have something to do with how Listing 2 instantiated the particular Win32_Printer object directly This statement allows execution to continue despite a run-time error. For scripts designed to run against multiple computers or printers it is important to including error handling in case the remote machine is off-line. check my site
Browse other questions tagged vbscript error-handling or ask your own question. asked 6 years ago viewed 109353 times active 3 months ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Linked -2 What the the equivalent of If on the other hand the Count value is greater than 0, then one or more target processes are running. In Listing 2, assign the name of a non-existent printer to strPrinter so that the script will produce an error.
This means that if Function A contains an On Error statement, and Function A calls Function B, but Function B does not contain an On Error statement, the error handling from However, putting the functionality that terminates the process into a function abstracts it, making it more portable and reusable. Set cnn1 = Server.CreateObject("ADODB.Connection") cnn1.Open "nothing" If cnn1.Errors.Count > 0 Then ' Enumerate Errors collection and display ' properties of each Error object. On Error Resume Next Example Everything I read about VBScript going back a few years said it was impossible to swith the error handling off after an On Error Resume Next in VBScript (but not VB)
I have modified the VBScript example used in the previous section to try to check the "Err" object by myself with the error handling flag turned on: