How to find out the essence of the error by the return code on Windows?

Question

Windows

I'm trying to link a FFmpeg lib compiled with GCC/MinGW to an MSVC project. It seems that he did everything necessary with the help of lib,, dlltool. dumpbinThere was a mistake -1073741515, I just googled it on StackOverflow. I solved it, another one got out -1073741521:. But she doesn't flinch. Do the small ones have any public DB with these codes to find out what it means?

Answer 1

0xC000012F .