Does sandboxing allow my application to tap Quartz events?

Question

According to the author of this software:

TextExpander cannot be "sandboxed" according to the latest restrictions from Apple

Here is what TextExpander does:

TextExpander saves your fingers and your keyboard, expanding custom keyboard shortcuts into frequently-used text

What does that mean exactly ? I would like to react to Quartz events and post Quartz events accordingly.

Answer 1

It doesn't look possible use CGEventTap within sandboxed app. This Apple Developer Forum thread shows some details.