I've several projectors around the school that have the ability to freeze the screen and display an image on the smartboards to the students, lesson objectives etc. This allows the teacher to view confidential emails, registers etc on their PC screens without interrupting the flow of the lesson.
I've also got a load of older projectors without this functionality, and several teachers requesting this ability.
I know I could add additional graphic cards, and extend the desktop etc, but a lot of the pc’s we have are either too old 4-5 years plus (and I don’t want to purchase legacy cards), or don't have the room to accommodate the additional card.
My question is this, is there any 3rd party software (this i doubt) or hardware that could produce the desired results.
Thanks for taking the time to read this, and also responding.