禁用WPF窗口标题栏中的关闭按钮(C#)

我想知道如何禁用(不删除/隐藏)WPF窗口中的关闭按钮。 我知道如何隐藏它使窗口的标题栏看起来像这样:

在此处输入图像描述

但我想禁用它意味着它应该如下所示:

在此处输入图像描述

我在C#中编写脚本并使用WPF(Windows Presentation Foundation)。

试试这个:

public partial class MainWindow : Window { [DllImport("user32.dll")] static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert); [DllImport("user32.dll")] static extern bool EnableMenuItem(IntPtr hMenu, uint uIDEnableItem, uint uEnable); const uint MF_BYCOMMAND = 0x00000000; const uint MF_GRAYED = 0x00000001; const uint MF_ENABLED = 0x00000000; const uint SC_CLOSE = 0xF060; const int WM_SHOWWINDOW = 0x00000018; const int WM_CLOSE = 0x10; public MainWindow() { InitializeComponent(); } private void Window_Loaded(object sender, RoutedEventArgs e) { } protected override void OnSourceInitialized(EventArgs e) { base.OnSourceInitialized(e); HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource; if (hwndSource != null) { hwndSource.AddHook(new HwndSourceHook(this.hwndSourceHook)); } } IntPtr hwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) { if (msg == WM_SHOWWINDOW) { IntPtr hMenu = GetSystemMenu(hwnd, false); if (hMenu != IntPtr.Zero) { EnableMenuItem(hMenu, SC_CLOSE, MF_BYCOMMAND | MF_GRAYED); } } else if (msg == WM_CLOSE) { handled = true; } return IntPtr.Zero; } } 

(摘自此处: http : //blogs.microsoft.co.il/blogs/tamir/archive/2007/09/26/never-ever-close-me-how-to-disable-close-button-in-wpf .aspx )

确保将ResizeMode设置为NoResize

您必须覆盖并在OnCLosing事件集中设置e.cancel = true

 public MyWindow() { InitializeComponent(); this.Closing += new System.ComponentModel.CancelEventHandler(MyWindow_Closing); } void MyWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e) { e.Cancel = true; } 

你可以用win32 hackery做到这一点。

我这样做了:获取CustomChromeWindow(最终看起来与图片中的完全相同),然后将Command()属性绑定到viewmodel,然后设置CanExecuteCommand = false,这将使按钮被禁用( 如何“使用MVVM模式禁用“WPF中的按钮?” 。

也许我也是这样的: 如何在C ++的另一个进程中禁用窗口上的关闭按钮?

基本上,用pInvoke调用该代码。 您可以轻松获得WPF窗口句柄。

这篇文章使用BehaviorGetWindowLongSetWindowLong进行了回答:

 public class HideCloseButtonOnWindow : System.Windows.Interactivity.Behavior { #region bunch of native methods private const int GWL_STYLE = -16; private const int WS_SYSMENU = 0x80000; [DllImport("user32.dll", SetLastError = true)] private static extern int GetWindowLong(IntPtr hWnd, int nIndex); [DllImport("user32.dll")] private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); #endregion protected override void OnAttached() { base.OnAttached(); AssociatedObject.Loaded += OnLoaded; } protected override void OnDetaching() { AssociatedObject.Loaded -= OnLoaded; base.OnDetaching(); } private void OnLoaded(object sender, RoutedEventArgs e) { var hwnd = new System.Windows.Interop.WindowInteropHelper(AssociatedObject).Handle; SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_SYSMENU); } } 

如何使用它: