golang 调用cmd下程序隐藏黑窗口-方法

通过go的标准库exec调用cmd命令时会闪弹黑窗口，为解决此问题在windows下可以用win32 API 的 WinExec。

此问题主要出现在带UI或无控制台的程序调用cmd时。

编译go时加入参数： go build  -ldflags="-H windowsgui"

 

package main

import (
"errors"
"log"
)

import (
"github.com/CodyGuo/win"
)

var (
winExecError = map[uint32]string{
0: "The system is out of memory or resources.",
2: "The .exe file is invalid.",
3: "The specified file was not found.",
11: "The specified path was not found.",
}
)

func main() {
err := execRun("cmd /c start http://www.baidu.com")
if err != nil {
log.Fatal(err)
}
}

func execRun(cmd string) error {
lpCmdLine := win.StringToBytePtr(cmd)
// http://baike.baidu.com/link?url=51sQomXsIt6OlYEAV74YZ0JkHDd2GbmzXcKj_4H1R4ILXvQNf3MXIscKnAkSR93e7Fyns4iTmSatDycEbHrXzq
ret := win.WinExec(lpCmdLine, win.SW_HIDE)
if ret <= 31 {
return errors.New(winExecError[ret])
}

return nil
}