Detecting non touch events, is it even possible?

[bdelapen]

After working with this library for a while I have been able to make all touch events (and a few other things) work. However, one thing has really had me stumped, no matter how much I have read through documentation, examples and even scoured the source code I have not been able to see anything about non touch events. What happens to messages that come from the Nextion to the MCU, messages such as 0x66 (from sendme), 0x70 or 0x71 (text or numeric data) or even 0x86 or 0x87 (enter sleep or wake).

Is there any native way to write a handler for those or are they just being swallowed up (ignored?) by the library and as such I would have to edit the core library in order to detect and use them?