LCB development

Ben Rubinstein benr_mc at
Wed Mar 15 06:42:17 EDT 2023

I didn't even know (had forgotten) that there was an extension builder! That's 

Searching the archives to find out where this special thing could be obtained 
from (hint for my future self, it's in the IDE under the Tools menu) I found 
references to the Extending LiveCode guide... which is obviously what I should 
have read in the first place.

Thanks all!


On 14/03/2023 18:02, Mark Wieder via use-livecode wrote:
> On 3/14/23 10:08, Ben Rubinstein via use-livecode wrote:
>> I last dabbled with LCB about five years ago - but now I have a need to get 
>> in there again.
>> Are there any tips that you-all can share?
>> In particular:
>> - what if anything is available for debugging LCB widgets?
>> - I've found a reference to a LiveCode Builder CLM module developed by James 
>> Hale - where might I find this?
>> - a really basic question - if I make a change to an LCB widget, defined in 
>> ~/Documents/LiveCode/Extensions; what's the quickest route to testing it? 
>> Can I delete and re-add the widget? Or do close+remove-from-memory the 
>> stack, and then reopen it? Or do I need to quit and relaunch LiveCode in 
>> order to see the change?
>> - any other pointers or suggestions gratefully received.
> Use the extension builder to test the widget. I keep a text editor open to 
> edit the code and press the test button after editing. No need to relaunch 
> either the builder or the IDE. Debugging is minimal.
> I've found very little documentaion on LCB, and much of what I've found is 
> either out of date or partial or wrong.

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