wpf自动隐藏窗口 实例

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;using System.Windows.Threading;using System.Runtime.InteropServices;namespace WpfAutoHide{ /// <summary> /// Window1.xaml 的交互逻辑 /// </summary> public partial class Window1 : Window { private const int BORDER = 3; private const int AUTOHIDETIME = 50; private Location _Location = Location.None; private bool _IsHidded = false; private DispatcherTimer _AutoHideTimer = null; public Window1() { InitializeComponent(); this._AutoHideTimer = new DispatcherTimer(); this._AutoHideTimer.Interval = TimeSpan.FromMilliseconds(AUTOHIDETIME); this._AutoHideTimer.Tick = new EventHandler(AutoHideTimer_Tick); } void AutoHideTimer_Tick(object sender, EventArgs e) { POINT p; if (!GetCursorPos(out p)) { return; } if (p.x >= this.Left && p.x <= (this.Left this.ActualWidth) && p.y >= this.Top && p.y <= (this.Top this.ActualHeight)) { this.ShowWindow(); } else { this.HideWindow(); } } protected override void OnLocationChanged(EventArgs e) { if (!this._IsHidded) { if (this.Top <= 0 && this.Left <= 0) { this._Location = Location.LeftTop; this.HideWindow(); } else if (this.Top <= 0 && this.Left >= SystemParameters.VirtualScreenWidth - this.ActualWidth) { this._Location = Location.RightTop; this.HideWindow(); } else if (this.Top <= 0) { this._Location = Location.Top; this.HideWindow(); } else { this._Location = Location.None; } } base.OnLocationChanged(e); } enum Location { None, Top, LeftTop, RightTop } private void ShowWindow() { if (this._IsHidded) { switch (this._Location) { case Location.Top: case Location.LeftTop: case Location.RightTop: this.Top = 0; this.Topmost = false; this._IsHidded = false; this.UpdateLayout(); break; case Location.None: break; } } } private void HideWindow() { if (!this._IsHidded) { switch (this._Location) { case Location.Top: this.Top = BORDER - this.ActualHeight; this.Topmost = true; this._IsHidded = true; this._AutoHideTimer.Start(); break; case Location.LeftTop: this.Left = 0; this.Top = BORDER - this.ActualHeight; this.Topmost = true; this._IsHidded = true; this._AutoHideTimer.Start(); break; case Location.RightTop: this.Left = SystemParameters.VirtualScreenWidth - this.ActualWidth; this.Top = BORDER - this.ActualHeight; this.Topmost = true; this._IsHidded = true; this._AutoHideTimer.Start(); break; case Location.None: break; } } } [StructLayout(LayoutKind.Sequential)] public struct POINT { public int x; public int y; public POINT(int x, int y) { this.x = x; this.y = y; } } [DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern bool GetCursorPos(out POINT pt); }}