JulioNIB created a mod for Grand Theft Auto IV, to allow a in-game “selfie mode”. The script and isntructions are available on his site: http://gtaxscripting.blogspot.it/2014/08/gta-iv-selfie-mod.html
This mod makes possible take some “selfies” in GTA IV, something similar to what we have in V, but here the photos are not related to the mobile phone, all script action. The photos are saved in the game Scripts folder (sElfie files folder). This mod was started some time ago by Josemar Santos.