WINAPI
Please post tutorials that are good for this subject(WINAPI) i can't find any good ones.
WINAPI
Google is your friend 
If you mean windows API, you can easily google a good tutorial.
WINAPI is just a calling convention, a type definition of __stdcall, the standard windows calling convention.
WINAPI is just a calling convention, a type definition of __stdcall, the standard windows calling convention.
