最近有朋友讓我給他弄個應用程序全屏的功能,例如銀行的取號程序界面。所以我從網上查詢了一些實現的方法。
C#應用程序中如何實現全屏幕顯示功能?
效果就像windows自帶的屏幕保護程序和眾多的游戲那樣,無論是否設置了“將任務欄保持在其他窗口的前端”都不顯示任務欄
實現方式一
在網上找來一些簡單的實現方式:
this.FormBorderStyle = FormBorderStyle.None; //設置窗體為無邊框樣式 this.WindowState = FormWindowState.Maximized; //最大化窗體
然后再設置窗體的位置和大小,例如:Width=1024 Height=768 Left=0 Top=0等size的值
把以上兩句代碼直接放到Form1_Load的方法中,就可以了,比較簡單,我就不貼代碼了。
參考出處:http://blog.csdn.net/friendan/article/details/7350570
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實現方式二
調用系統的API函數,如user32.dll中的FindWindow和ShowWindow函數,具體代碼如下:
[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);
代碼如下:
using System; using System.Windows.Forms; using System.Drawing; using System.Runtime.InteropServices; namespace FullScr { public partial class Form1 : Form { Boolean m_IsFullScreen = false;//標記是否全屏 public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } /// <summary> /// 全屏按鈕的Click事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { m_IsFullScreen = !m_IsFullScreen;//點一次全屏,再點還原。 this.SuspendLayout(); if (m_IsFullScreen)//全屏 ,按特定的順序執行 { SetFormFullScreen(m_IsFullScreen); this.FormBorderStyle = FormBorderStyle.None; this.WindowState = FormWindowState.Maximized; this.Activate();// } else//還原,按特定的順序執行——窗體狀態,窗體邊框,設置任務欄和工作區域 { this.WindowState = FormWindowState.Normal; this.FormBorderStyle = FormBorderStyle.Sizable; SetFormFullScreen(m_IsFullScreen); this.Activate(); } this.ResumeLayout(false); } /// <summary> /// 設置全屏或這取消全屏 /// </summary> /// <param name="fullscreen">true:全屏 false:恢復</param> /// <param name="rectOld">設置的時候,此參數返回原始尺寸,恢復時用此參數設置恢復</param> /// <returns>設置結果</returns> public Boolean SetFormFullScreen(Boolean fullscreen)//, ref Rectangle rectOld { Rectangle rectOld = Rectangle.Empty; Int32 hwnd = 0; hwnd = FindWindow("Shell_TrayWnd", null);//獲取任務欄的句柄 if (hwnd == 0) return false; if (fullscreen)//全屏 { ShowWindow(hwnd, SW_HIDE);//隱藏任務欄 SystemParametersInfo(SPI_GETWORKAREA, 0, ref rectOld, SPIF_UPDATEINIFILE);//get屏幕范圍 Rectangle rectFull = Screen.PrimaryScreen.Bounds;//全屏范圍 SystemParametersInfo(SPI_SETWORKAREA, 0, ref rectFull, SPIF_UPDATEINIFILE);//窗體全屏幕顯示 } else//還原 { ShowWindow(hwnd, SW_SHOW);//顯示任務欄 SystemParametersInfo(SPI_SETWORKAREA, 0, ref rectOld, SPIF_UPDATEINIFILE);//窗體還原 } 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 } }
參考出處:http://www.cnblogs.com/ArcScofield/archive/2013/01/02/Form_Fullscreen.html
實現方式三
窗體最大化,不占用任務欄,具體實現如下:
this.MaximizedBounds = Screen.PrimaryScreen.WorkingArea; //設置最大化的大小為工作區域
this.WindowState = FormWindowState.Maximized;
出處:https://blog.csdn.net/lwjzjw/article/details/80828353