Dolphin uses a lot of APIs, which one would you like to know? :p
If you're talking about the GUI, that's wxWidgets. If you talking about MD5 hashing, that's provided by PolarSSL, iirc. Dolphin has its own wrappers for file I/O, but if you're hacking something quick and dirty yourself, I'd just use C++ and fstream directly.
If you're talking about the GUI, that's wxWidgets. If you talking about MD5 hashing, that's provided by PolarSSL, iirc. Dolphin has its own wrappers for file I/O, but if you're hacking something quick and dirty yourself, I'd just use C++ and fstream directly.