• Adobe After Effects Expressions

  Alert Boxes in AE Expressions

  Posted by David Markey on July 13, 2015 at 2:28 pm

  are alert boxes supported in AE Expressions?

  I’ve tried some of these in one of my expressions https://www.w3schools.com/js/js_popup.asp

  to give the user an error message if 2 text layers don’t match, but AE tells me ‘property or method window is missing or does not exist.’

  I gather that a script would support this, but I don’t want to require the user to run a script to know that their comp is messed up. My idea for a workaround is to use a text layer with the error message and control the opacity with the expression.

  Thoughts?

  Dan Ebberts replied 11 years ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  July 13, 2015 at 3:47 pm

  I think the text layer with the opacity expression is probably the best you can do. I’d make it a guide layer (so there’s no chance of it rendering), locked, and shy.

  Dan

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