首页 > 代码库 > C#窗体全屏功能

C#窗体全屏功能

最近有朋友让我给他弄个应用程序全屏的功能,例如银行的取号程序界面。所以我从网上查询了一些实现的方法。

C#应用程序中如何实现全屏幕显示功能?
 效果就像windows自带的屏幕保护程序和众多的游戏那样,无论是否设置了“将任务栏保持在其他窗口的前端”都不显示任务栏

实现方式一

在网上找来一些简单的实现方式:

this.FormBorderStyle = FormBorderStyle.None;     //设置窗体为无边框样式this.WindowState = FormWindowState.Maximized;    //最大化窗体 

然后再设置窗体的位置和大小,例如:Width=1024 Height=768 Left=0 Top=0等size的值

把以上两句代码直接放到Form1_Load的方法中,就可以了,比较简单,我就不贴代码了。

参考出处:http://blog.csdn.net/friendan/article/details/7350570

============================================================

实现方式二

调用系统的API函数,如user32.dll中的FindWindow和ShowWindow函数,具体代码如下:

        [DllImport("user32.dll", EntryPoint = "ShowWindow")]        public static extern Int32 ShowWindow(Int32 hwnd, Int32 nCmdShow);        [DllImport("user32.dll", EntryPoint = "FindWindow")]        private static extern Int32 FindWindow(string lpClassName, string lpWindowName);

代码如下:

using System;using System.Windows.Forms;using System.Drawing;using System.Runtime.InteropServices;namespace FullScr{    public partial class Form1 : Form    {        Boolean m_IsFullScreen = false;//标记是否全屏        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {        }        /// <summary>        ///  全屏按钮的Click事件        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void button1_Click(object sender, EventArgs e)        {            m_IsFullScreen = !m_IsFullScreen;//点一次全屏,再点还原。              this.SuspendLayout();            if (m_IsFullScreen)//全屏 ,按特定的顺序执行            {                SetFormFullScreen(m_IsFullScreen);                this.FormBorderStyle = FormBorderStyle.None;                this.WindowState = FormWindowState.Maximized;                this.Activate();//            }            else//还原,按特定的顺序执行——窗体状态,窗体边框,设置任务栏和工作区域            {                this.WindowState = FormWindowState.Normal;                this.FormBorderStyle = FormBorderStyle.Sizable;                SetFormFullScreen(m_IsFullScreen);                this.Activate();            }            this.ResumeLayout(false);        }        /// <summary>          /// 设置全屏或这取消全屏          /// </summary>          /// <param name="fullscreen">true:全屏 false:恢复</param>          /// <param name="rectOld">设置的时候,此参数返回原始尺寸,恢复时用此参数设置恢复</param>          /// <returns>设置结果</returns>          public Boolean SetFormFullScreen(Boolean fullscreen)//, ref Rectangle rectOld        {            Rectangle rectOld = Rectangle.Empty;            Int32 hwnd = 0;            hwnd = FindWindow("Shell_TrayWnd", null);//获取任务栏的句柄            if (hwnd == 0) return false;            if (fullscreen)//全屏            {                ShowWindow(hwnd, SW_HIDE);//隐藏任务栏                SystemParametersInfo(SPI_GETWORKAREA, 0, ref rectOld, SPIF_UPDATEINIFILE);//get屏幕范围                Rectangle rectFull = Screen.PrimaryScreen.Bounds;//全屏范围                SystemParametersInfo(SPI_SETWORKAREA, 0, ref rectFull, SPIF_UPDATEINIFILE);//窗体全屏幕显示            }            else//还原             {                ShowWindow(hwnd, SW_SHOW);//显示任务栏                SystemParametersInfo(SPI_SETWORKAREA, 0, ref rectOld, SPIF_UPDATEINIFILE);//窗体还原            }            return true;        }        #region user32.dll        public const Int32 SPIF_UPDATEINIFILE = 0x1;        public const Int32 SPI_SETWORKAREA = 47;        public const Int32 SPI_GETWORKAREA = 48;        public const Int32 SW_SHOW = 5;        public const Int32 SW_HIDE = 0;        [DllImport("user32.dll", EntryPoint = "ShowWindow")]        public static extern Int32 ShowWindow(Int32 hwnd, Int32 nCmdShow);        [DllImport("user32.dll", EntryPoint = "FindWindow")]        private static extern Int32 FindWindow(string lpClassName, string lpWindowName);        [DllImport("user32.dll", EntryPoint = "SystemParametersInfo")]        private static extern Int32 SystemParametersInfo(Int32 uAction, Int32 uParam, ref Rectangle lpvParam, Int32 fuWinIni);        #endregion    }}


参考出处:http://www.cnblogs.com/ArcScofield/archive/2013/01/02/Form_Fullscreen.html

 

C#窗体全屏功能