It IS possible in graphics mode
No its not, you are digging into the api and a third-party dll to handle what B+ natively does ;c)Unless you are making a game fullscreen, you will always want to use the GUI & event-driven commands in B+ as you are writing the game/app for an event-driven OS. If you don't, you will run into tons of timing issues and other incompatibilities as your program tries to hog the CPU and interferes with the normal operation of the OS.
If you are doing full-screen in B+, you will want to use the event-driven commands so your game will properly integrate with Windows and not hog the CPU and give you unnecessary timing issues to deai with.