Hello,

I have started studying QNX graphics architecture, and I have been digging into both Photon microGUI and GF 
documentations, including architecture appendices. However, I am still a bit confused, and I hope someone can enlighten 
me.

First, it's clear to me that Photon runs on the top of GF. What is unclear is:


1. What's the role of io-graphics? Isn't io-display the one who loads the graphics driver? If so, how can I place a 
region representing a device driver in the region space, if the graphics driver has already been loaded by io-display? 
Or hasn't it?

2, Which process is responsible for managing regions? I suppose it's Photon, right? So, is it right to affirm that when 
Photon is launched, it will create some default regions, such as the device region and the root region?

Everything is still pretty new to me. In my mind, I am still trying to visualize the implementation details that lie 
between Photon and QF, specially, the role of each component, being them:
1. io-display
2. io-graphics
3. Photon
4. pwm (is this just a region which emits cooked events?)
5. video device drivers (who loads them?)

Thank you so much for your patience :)