Does Xojo have a debug log (Desktop app project)?

Getting Started
1

Hi, I’m really new to Xojo.

Does Xojo have a debug log? i.e. something like the Javascript console. I see the errors/messages log, but I don’t know how to write to those logs during debugging.

Thanks.

2

I dont know anything about the javascript console. But there is System.Debuglog in Xojo.

3

System.DebugLog outputs to the Messages pane in the bottom of the Xojo IDE.

4

Set yourself up an expander, it’s the best way.
I’ve got one that expands NSLog( to System.DebugLog("[cursor]")
It helps for old habits :slight_smile:

5

Thanks for the info on System.DebugLog.

Doc page is here

One more question, is there a way to print the method or function being called? i.e.:

System.DebugLog(FUNCTION)
System.DebugLog(METHOD)

6

Use CurrentMethodName.

7

Perfect, Wayne. Thanks.

8

If you are doing much with debug logging, it may be worth it to wrap in an #If. For example:

#If DebugBuild Then Dim calculatedValue As Blah = BlahBlah() System.DebugLog(CurrentMethodName + ": Calculated result is: " + calculatedValue) #EndIf

This prevents the calculation, the string concat, etc… from taking CPU cycles in your production apps. Although in a production app, the DebugLog does not do anything, even in simple calls everything in the parens is still executed and it goes to a dead function basically.