C#winform窗体如何通过windowApi的FindWindow函数获取窗体句柄

在同一个程序里，传统方式是通过this来设置当前窗体的最大化、最小化等操作，

那么怎样通过窗体句柄来设置窗体的最大化、最小化呢？

1、界面布局

通过this设置窗体最大化： name:btnWindowThis

通过handle设置窗体最大化：name:btnWindowHandle

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" alt="" width="363" height="199" />

2、设置窗体最大化

1）this方式

直接设置当前窗体的状态为最大化就可以了，

       /// <summary>
        /// 通过this设置方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnWindowThis_Click(object sender, EventArgs e)
        {
            //通过this.WindowState设置窗体最大化
            this.WindowState = FormWindowState.Maximized;
        } 

2）handle方式

首先获取当前窗体的句柄，通过句柄控制窗体最大化

        /// <summary>
        /// 通过句柄设置方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnWindowHander_Click(object sender, EventArgs e)
        {
            // 获取查找窗体句柄(通过窗体标题名)
            IntPtr mainHandle = FindWindow(null, "演示窗体");
            if (mainHandle != IntPtr.Zero)
            {
                //通过句柄设置当前窗体最大化（0：隐藏窗体，1：默认窗体，2：最小化窗体，3：最大化窗体，....）
                bool result = ShowWindowAsync(mainHandle, );
            }
        }

Ps: 获取窗体句柄，也可以用C++的Spy++工具查看（获取到的句柄是16进制，而FindWindow()是获取10进制）

3、完整源码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsForms
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 获取窗体的句柄函数
        /// </summary>
        /// <param name="lpClassName">窗口类名</param>
        /// <param name="lpWindowName">窗口标题名</param>
        /// <returns>返回句柄</returns>
        [DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        /// <summary>
        /// 通过句柄，窗体显示函数
        /// </summary>
        /// <param name="hWnd">窗体句柄</param>
        /// <param name="cmdShow">显示方式</param>
        /// <returns>返工成功与否</returns>
        [DllImport("user32.dll", EntryPoint = "ShowWindowAsync", SetLastError = true)]
        public static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);

        /// <summary>
        /// 通过句柄设置方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnWindowHander_Click(object sender, EventArgs e)
        {
            // 获取查找窗体句柄(通过窗体标题名)
            IntPtr mainHandle = FindWindow(null, "演示窗体");
            if (mainHandle != IntPtr.Zero)
            {
                //通过句柄设置当前窗体最大化（0：隐藏窗体，1：默认窗体，2：最小化窗体，3：最大化窗体，....）
                bool result = ShowWindowAsync(mainHandle, );
            }
        }

        /// <summary>
        /// 通过this设置方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnWindowThis_Click(object sender, EventArgs e)
        {
            //通过this.WindowState设置窗体最大化
            this.WindowState = FormWindowState.Maximized;
        }
    }
}

下一篇，介绍一个程序窗体如何通过句柄控制另一个程序窗体