Hi, I just wanted to share my code for a partial working mouse hover code using QT and maya. It was something I was working on and might not ever work on again, but would love to share it with anyone who might be on the same quest. It was originally intended for use with pre-selection highlighting type tool. So only at the moment the code grabs maya's viewport and passes it to qt to capture the mouse hover position. Hope it helps anyone looking.
Mouse Hover Code