Suggestion about active window

[truNEET]

Loving the emulator so far, I can play some of my favourite games on it to almost perfection.
However, one of the things that bugs me about it is that even when I don't have PPSSPP as the current active window, it still sends button/ keyboard key inputs to it and causes it to do things when I don't want it to. I can stop this happening by pausing the emulation with F8, but I don't think I should have to do that every time.
Can there be an option made (or just outright disable it) that changes this so that when PPSSPP is not the current active window, no input can be sent to it? It would be really helpful if this could be put in a later version and I would greatly appreciate it.