Good question. I know there are some pretty advanced class types like animation but I want to know what the best practice would be for something like a company logo. It seems like using the QPixmap and bliting it to the screen in a label field is easiest but is it the most efficient.
Displaying a company logo statically somewhere on your form is irrelevant regarding performance. Any method is fine, so chose the easiest one. QLabel with a pixmap.
