WPF全屏

WPF全屏
全屏代码：
#region设置全屏
this.WindowState = System.Windows.WindowState.Normal;
this.WindowStyle = System.Windows.WindowStyle.None;
this.ResizeMode = System.Windows.ResizeMode.NoResize;
this.Topmost = true;
this.Left = 0.0;
this.Top = 0.0;
this.Width =
System.Windows.SystemParameters.PrimaryScreenWidth;
this.Height =
System.Windows.SystemParameters.PrimaryScreenHeight;
#endregion
扩展类：
项目先引用下面dll：
1：System.Windows.Forms;
2：System.Drawing;
public static class ExpendMethod
{
private static Window _fullWindow;
private static WindowState _windowState;
private static WindowStyle _windowStyle;
private static bool _windowTopMost;
private static ResizeMode _windowResizeMode;
private static Rect _windowRect;
///<summary>
///进入全屏
///</summary>
///<param name="window"></param>
public static void GoFullscreen(this Window window)
{
//已经是全屏
if (window.IsFullscreen()) return;
//存储窗体信息
_windowState = window.WindowState;
_windowStyle = window.WindowStyle;
_windowTopMost = window.Topmost;
_windowResizeMode = window.ResizeMode;
_windowRect.X = window.Left;
_windowRect.Y = window.Top;
_windowRect.Width = window.Width;
_windowRect.Height = window.Height;
//变成无边窗体
window.WindowState = WindowState.Normal;//假如已经是Maximized，就不能进入全屏，所以这里先调整状态
window.WindowStyle = WindowStyle.None;
window.ResizeMode = ResizeMode.NoResize;
window.Topmost = true;//最大化后总是在最上面
//获取窗口句柄
var handle = new WindowInteropHelper(window).Handle;
//获取当前显示器屏幕
Screen screen = Screen.FromHandle(handle);
//调整窗口最大化,全屏的关键代码就是下面3句
window.MaxWidth = screen.Bounds.Width;
window.MaxHeight = screen.Bounds.Height;
window.WindowState = WindowState.Maximized;
//解决切换应用程序的问题
window.Activated += new EventHandler(window_Activated);
window.Deactivated += new EventHandler(window_Deactivated);
//记住成功最大化的窗体
_fullWindow = window;
}
static void window_Deactivated(object sender, EventArgs e)
{
var window = sender as Window;
window.Topmost = false;
}
static void window_Activated(object sender, EventArgs e)
{
var window = sender as Window;
window.Topmost = true;
}
///<summary>
///退出全屏
///</summary>
///<param name="window"></param>
public static void ExitFullscreen(this Window window)
{
//已经不是全屏无操作
if (!window.IsFullscreen()) return;
//恢复窗口先前信息，这样就退出了全屏
window.Topmost = _windowTopMost;
window.WindowStyle = _windowStyle;
window.ResizeMode = ResizeMode.CanResize;//设置为可调整窗体大小 window.Left = _windowRect.Left;
window.Width = _windowRect.Width;
window.Top = _windowRect.Top;
window.Height = _windowRect.Height;
window.WindowState = _windowState;//恢复窗口状态信息
window.ResizeMode = _windowResizeMode;//恢复窗口可调整信息
//移除不需要的事件
window.Activated -= window_Activated;
window.Deactivated -= window_Deactivated;
_fullWindow = null;
}
///<summary>
///窗体是否在全屏状态
///</summary>
///<param name="window"></param>
///<returns></returns>
public static bool IsFullscreen(this Window window) {
if (window == null)
throw new ArgumentNullException("window");
return _fullWindow == window;
}。