Get monitor information

Hey all. Is it possible to get information from all available monitors connected? I wish to get at least the primary screen width and screen height so I can set the game to windowed-fullscreen mode. I’ve googled it and the only information I can find is about the window size, which is not what I want. I know I can get this information myself, but it would be nice to have an already established cross-platform system implemented. Is there one already implemented?

Thanks a lot in advance!