窗体和控制台

本文关键字：控制台 窗体 | 更新日期: 2023-09-27 18:25:34

我在一个应用程序中运行一个窗体应用程序和一个控制台应用程序。

如何运行表单应用程序并在单击表单上的按钮之前关闭控制台？

窗体和控制台

您需要调用几个win32app调用，特别是alloccounte。这是一篇msdn文章，其中包含一些示例代码。

您需要执行一些p/Invoke:

添加适当的方法：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using StackOverflow.Extensions;
using System.Runtime.InteropServices;
using System.IO;
using Microsoft.Win32.SafeHandles;
namespace StackOverflow
{
    public partial class FormMain : Form
    {
        [DllImport("kernel32.dll",
            EntryPoint = "GetStdHandle",
            SetLastError = true,
            CharSet = CharSet.Auto,
            CallingConvention = CallingConvention.StdCall)]
        private static extern IntPtr GetStdHandle(int nStdHandle);
        [DllImport("kernel32.dll",
            EntryPoint = "AllocConsole",
            SetLastError = true,
            CharSet = CharSet.Auto,
            CallingConvention = CallingConvention.StdCall)]
        private static extern int AllocConsole();
        // Some constants
        private const int STD_OUTPUT_HANDLE = -11;
        private const int MY_CODE_PAGE = 437;
        public FormMain()
        {
            InitializeComponent();
        }
        public void PrepareConsole()
        {
            AllocConsole();
            IntPtr stdHandle = GetStdHandle(STD_OUTPUT_HANDLE);
            SafeFileHandle safeFileHandle = new SafeFileHandle(stdHandle, true);
            FileStream fileStream = new FileStream(safeFileHandle, FileAccess.Write);
            Encoding encoding = System.Text.Encoding.GetEncoding(MY_CODE_PAGE);
            StreamWriter standardOutput = new StreamWriter(fileStream, encoding);
            standardOutput.AutoFlush = true;
            Console.SetOut(standardOutput);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            // Console was not visible before this button click
            Console.WriteLine("This text is written to the console that just popped up.");
            MessageBox.Show("But we're still in a Windows Form application.");
        }
    }
}
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