>Hi,
>
>I am thinking of enclosing a call to a function with TRY / CATCH. But this function calls many other function and other classed. Those called functions and classes may have their own TRY / CATCH. Will the new TRY / CATCH (around the large block of calls) fails because of the "internal" TRY / CATCH?
>
>TIA

You can nest Try/catch, although I haven't done it myself. Here's some articles on the subject. Scroll down to the sections about nesting.
https://www.codemag.com/article/0301072/Structured-Error-Handling-in-VFP-8
https://fox.wikis.com/wc.dll?Wiki~TryCatch
https://www.hectorcorrea.com/downloads/correatrycatchwhitepaper.pdf