[转]error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup

原文地址：http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvc/thread/b83e4884-9dec-4d67-ab92-90d5b6c8c51c

Do you have a WinMain or _tWinMain method in the code?
Do you have a main or _tmain method in the code?
The error unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup indicates that you are building with /SUBSYSTEM:WINDOWS in the linker options and "Use Unicode Character Set" but that the _tWinMain entry point is not present.
Your entry point method should look like:

int APIENTRY _tWinMain(HINSTANCE hInstance,                     HINSTANCE hPrevInstance,                     LPTSTR    lpCmdLine,                     int       nCmdShow){ //... }

If you have a main() function as the intended entry point - i.e. are building a CONSOLE app, then you need to make sure that the subsystem the linker uses is CONSOLE in Project properties/Configuration Properties/Linker/System/SubSystem
and the entry point needs to look like:

int _tmain(int argc, _TCHAR* argv[]){ //... }

by Steve Horne - MSFT at Wednesday, June 24, 2009 1:27 AM