使用 syscall.OpenProcess 时报错 The parameter is incorrect.

有没有高人帮忙看看？下面是全部源码（从网上抄的），我是想获取当前内存使用量。 ```go package main /* #include <windows.h> #include <Psapi.h> void CountPrivate(PSAPI_WORKING_SET_INFORMATION* workSetInfo,int* count) { int workSetPrivate = 0; for (ULONG_PTR i = 0; i < workSetInfo->NumberOfEntries; ++i) { if(!workSetInfo->WorkingSetInfo[i].Shared) // 如果不是共享页计数器+1 workSetPrivate += 1; } *count = workSetPrivate; } */ import "C" import ( "flag" "fmt" "syscall" "unsafe" ) const LARGE_BUFFER_SIZE = 256 * 1024 * 1024 var ( workSetInfo C.PSAPI_WORKING_SET_INFORMATION psapi = syscall.NewLazyDLL("Psapi.dll") QueryWorkingSet = psapi.NewProc("QueryWorkingSet") ) func main() { fmt.Println("go") pid := flag.Int("p", 0, "-p pid") fmt.Println(pid) flag.Parse() h, err := syscall.OpenProcess(0X0400|0X0010, false, uint32(*pid)) if err != nil { fmt.Println(err) //err:The parameter is incorrect. return } defer syscall.CloseHandle(h) var size = Query(h) * syscall.Getpagesize() / 1024 //单位转化为kb fmt.Println("Memory:", size) } func Query(handle syscall.Handle) int { var bufferSize = 0x8000 var buffer = make([]byte, bufferSize) for { r, _, _ := QueryWorkingSet.Call(uintptr(handle), uintptr(unsafe.Pointer(&buffer[0])), uintptr(bufferSize)) if r == 0 { bufferSize *= 2 if bufferSize > LARGE_BUFFER_SIZE { return 0 } buffer = make([]byte, bufferSize) continue } break } var count C.int C.CountPrivate((*C.PSAPI_WORKING_SET_INFORMATION)(unsafe.Pointer(&buffer[0])), &count) return int(count) } ```