func main() {
// Simply call add10
fmt.Println("Simple call:", C.add10(10))
// Store into a var and print
a := C.add10(10)
fmt.Println("var from C:", a)
// Pass a value to C
govar := 10
cresult := C.add10(C.int(govar))
fmt.Println("go var passed to C:", cresult)
// Full conversion
goresult := int(C.add10(C.int(govar)))
govar2 := 30
// Now goresult is a full Go "int" and I can use without casts
goadd := goresult + govar2
fmt.Println("Full conversion:", goadd)
// Call Windows API
fmt.Println("GetTickCount()=", C.GetTickCount())
// Call API that needs an additional library
fmt.Println("timeGetTime=", C.timeGetTime())
}
func GetTimeMillis() uint64 {
return uint64(C.timeGetTime())
}