Qt widget using maya python api

hi all

is it possible to create custom qt widgets using maya python api ?
(what we can do in PyQt4 but using maya python api only)

can we create custom widget by accessing Qt using python api (not PyQt4 for maya) ?

i’ve gone through MQtUtil Class in maya api but i didnt find good example of
using this class (python api example)

OR

can i access Qt library in python using ctypes module ?

(i m running through some license issues that’s why i m not using PyQt4)