Hi Placide;
Yes, you can check the PS Apps side as well. Its a little more complicated - but, doable as follows:
1) Use the "of_getCacheDir" command to locate where your local work area is located.
2) Check the sub-folder "plugins" and look for the file "Ini.xml".
3) Read the "Ini.xml" file and check if the XML has the "key" "System".
4) If "System" is present your in "emulation mode - if not, your in "Client" mode.
Emulation Mode: (System Key)
Client Mode: NO "System" key
HTH
Regards ... Chris