topic Re: Breakpoint when debugging an application (GUI) in Discussions

Breakpoint when debugging an application (GUI)

FN — Tue, 11 Feb 2020 07:56:55 GMT

How can I add a breakpoint that stops the execution within an application that has GUI?

For example, only when pressing a button the debugger opens and halts the program in the desired line.

Re: Breakpoint when debugging an application (GUI)

danschikore — Tue, 11 Feb 2020 13:38:20 GMT

The debugger has to be open before you can set any breakpoints. I used one of the scripting index ButtonBox examples to demonstrate:

Names Default To Here( 1 );
New Window( "Example",
	Button Box( "press me", <<setFunction(
		Function( {this},
			this << setButtonName( "thanks" )
		)	
	) )
);

Click "Debug Script" from the toolbar, Edit menu, or context-click menu. In the debugger, context-click on the line within the Button Box function to set a breakpoint, and then click "Run" from the toolbar. The script will then run without interruption until the button is pressed.

Re: Breakpoint when debugging an application (GUI)

FN — Thu, 20 Feb 2020 09:04:50 GMT

Thanks, but when trying to run any application via a script, I get this error:

Name Unresolved: OnModuleLoad in access or evaluation of 'OnModuleLoad' , OnModuleLoad( {} ) /*###*/

If you run it from the GUI editor tab (Module1), this error does not appear. Hence, I was not sure how to debug these.

Re: Breakpoint when debugging an application (GUI)

danschikore — Thu, 20 Feb 2020 13:28:26 GMT

I see now - I was assuming the generic term "application", and not the Application Builder.

The scripts in Application Builder cannot be run stand-alone - when you right click in the script area and choose "Run" or "Debug" it tries to execute the script by itself, without starting a JMPApp instance first. I would suggest using the red-triangle menu to start the debugging session, which includes the necessary application startup.

Re: Breakpoint when debugging an application (GUI)

FN — Thu, 20 Feb 2020 14:23:05 GMT

I was not aware of that option, thank you.

Unfortunately, I get this message when I click "Debug Application":

A time-out encountered while attempting to connect to the JSL Debugger GUI.

Re: Breakpoint when debugging an application (GUI)

Jeff_Perkinson — Thu, 20 Feb 2020 14:28:47 GMT

SN-55411 may help you get the debugger working.