CreateProcess with golang

Question

Hello, I'm trying to call CreateProcess from syscall

func CreateProcess(appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) 

But I got num 123 error ("Invalid file name, directory name or volume label syntax".) The correct path is calc.exe.

package main
import (
        "fmt"
        "syscall"
)

func main() {
    var pS syscall.SecurityAttributes
    var tS syscall.SecurityAttributes
    var iH bool = true
    var cF uint32
    var env uint16
    var cD uint16
    var sI syscall.StartupInfo
    var pI syscall.ProccessInformation
    var err error

    err = syscall.CreateProcess(
        syscall.StringToUTF16Ptr("c:\\windows\\system32\\calc.exe"),
        syscall.StringToUTF16Ptr(""),
        &pS,
        &tS,
        iH,
        cF,
        &env,
        &cD,
        &sI,
        &pI)

        fmt.Printf("Return: %d\n", err)
}

Answer 1

You incorrectly set the lpCurrentDirectory parameter (from https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425%28v=vs.85%29.aspx ):

. UNC.      NULL, , . ( , .)

, . this, :

package main

import (
    "fmt"
    "syscall"
)

func main() {

    var sI syscall.StartupInfo
    var pI syscall.ProcessInformation

    argv := syscall.StringToUTF16Ptr("c:\\windows\\system32\\calc.exe")

    err := syscall.CreateProcess(
        nil,
        argv,
        nil,
        nil,
        true,
        0,
        nil,
        nil,
        &sI,
        &pI)

    fmt.Printf("Return: %d\n", err)
}