If you elaborate your question, what cell lines and what volume you are planning to get protein from would be better.
For research purpose, if you are using a 6-well plate you can add eGFP as a reporter in one of the wells and that can give you an idea about the success of transfection as well as transfection efficiency.
I don't think so this is very quick way but it can give you some idea 24 hrs post transfection