Discuss how to hide terminal in golang

When writing golang applications, we often need to interact with the terminal. However, sometimes we may need to hide the terminal window, such as when running a job. In this post, we will discuss how to hide terminal in golang.

Why hide the terminal?

In many scenarios, hiding the terminal may be necessary: ​​

1. We do not want the terminal to interact with the user when running the specified program or application.
2. We don't want the terminal output to be visible when running commands or operating system commands.
3. When running automated test cases, we need to hide the terminal window so that the test results are clearer.

How to hide the terminal?

In golang, we can use the syscall package to interact with the system to achieve hidden terminals.

The steps are as follows:

1. Import the syscall package

   import "syscall"

2. Define the structure

   var (
       kernel32DLL = syscall.NewLazyDLL("kernel32.dll")
       procShowWindow = kernel32DLL.NewProc("ShowWindow")
   )
   const (
       SW_HIDE = 0
   )

3. Calling system function

   procShowWindow.Call(uintptr(hwnd), uintptr(SW_HIDE))

Among them, hwnd is the window identifier and SW_HIDE is the window hiding command.

Sample code

The following is a sample code for hiding a window using golang.

package main

import (
    "syscall"
)

func main() {
    var hwnd syscall.Handle
    syscall.GetInputState()
    syscall.GetConsoleWindow()
    procShowWindow.Call(uintptr(hwnd), uintptr(SW_HIDE))
}

Summary

In golang, the hidden terminal needs to interact with the system and is implemented using the syscall package. Through the introduction of this article, you should learn how to hide the terminal in golang.

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