C#窗体全屏功能实例代码
发布时间:2020-12-15 06:14:16 所属栏目:百科 来源:网络整理
导读: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
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? 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。 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,ref rectOld,SPIF_UPDATEINIFILE);//get屏幕范围 Rectangle rectFull = Screen.PrimaryScreen.Bounds;//全屏范围 SystemParametersInfo(SPI_SETWORKAREA,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,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",string lpWindowName); [DllImport("user32.dll",EntryPoint = "SystemParametersInfo")] private static extern Int32 SystemParametersInfo(Int32 uAction,Int32 uParam,ref Rectangle lpvParam,Int32 fuWinIni); #endregion } } 完善后的代码: 非常感谢@iheartwater的热心帮助,更改后的代码能够解决”全屏后,窗体能够恢复到原来的状态,包括位置(Loaction)和大小(Size)“,唉,其实,原因还挺简单的。 Modified Code public partial class FrmFullScreen : Form { Boolean m_IsFullScreen = false;//标记是否全屏 public FrmFullScreen() { InitializeComponent(); } /// <summary> /// 全屏按钮的Click事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnFullScreen_Click(object sender,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> /// 全屏的快捷功能,F11相当于单机按钮;Esc健,如果全屏则退出全屏 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnFullScreen_KeyDown(object sender,KeyEventArgs e) { if (e.KeyCode == Keys.F11) { btnFullScreen.PerformClick(); e.Handled = true; } else if (e.KeyCode == Keys.Escape)//esc键盘退出全屏 { if (m_IsFullScreen) { e.Handled = true; this.WindowState = FormWindowState.Normal;//还原 this.FormBorderStyle = FormBorderStyle.Sizable; SetFormFullScreen(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",SPIF_UPDATEINIFILE);//get 屏幕范围 Rectangle rectFull = Screen.PrimaryScreen.Bounds;//全屏范围 SystemParametersInfo(SPI_SETWORKAREA,SW_SHOW);//显示任务栏 SystemParametersInfo(SPI_SETWORKAREA,SPIF_UPDATEINIFILE);//窗体还原 } return true; } #region user32.dll [DllImport("user32.dll",Int32 nCmdShow); public const Int32 SW_SHOW = 5; public const Int32 SW_HIDE = 0; [DllImport("user32.dll",Int32 fuWinIni); public const Int32 SPIF_UPDATEINIFILE = 0x1; public const Int32 SPI_SETWORKAREA = 47; public const Int32 SPI_GETWORKAREA = 48; [DllImport("user32.dll",string lpWindowName); #endregion } 窗体全屏 窗体全屏的方法: 隐藏任务栏、设置工作区域 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |