unresolved external symbol _winmain@16

The following three files were written with VS2013:

/* *function.c */ int function () {   return;}

/* *function.h */ int function ();

/* *main.c */ #include<stdio.h>main () {    printf ("%d\n", Function ());    GetChar ();}

However, the following error occurred at compile time:

Error 1 LNK2019: unresolved external symbol [email protected]

Error 2 fatal error lnk1120:1 an unresolved external command ...

Later found that the original is the problem of the establishment of the project, previously established is the WIN32 project, re-establish a WIN32 console application can be

unresolved external symbols [email protected]