使用 WindowChrome.WindowChrome 禁用上下文菜单

本文介绍了使用 WindowChrome.WindowChrome 禁用上下文菜单的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如果我使用 WindowChrome.WindowChrome 样式，我将无法禁用 ContextMenu.请让我知道您的意见以解决此问题.如果没有 WindowChrome，我可以使用相同的代码禁用上下文菜单.

I am unable to disable ContextMenu, if I use WindowChrome.WindowChrome style. Please let me know your input to resolve this problem. Without WindowChrome i am able to disable context menu with same piece of code.

<Window x:Class="ConextMenu_Sample.MainWindow" xmlns="schemas.microsoft/winfx/2006/xaml/presentation" xmlns:x="schemas.microsoft/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <WindowChrome.WindowChrome> <WindowChrome CaptionHeight="35" CornerRadius="0" ResizeBorderThickness="5" UseAeroCaptionButtons="False" /> </WindowChrome.WindowChrome> <Grid> </Grid> </Window>

背后的代码

public partial class MainWindow : Window { private const uint WP_SYSTEMMENU = 0x02; private const uint WM_SYSTEMMENU = 0xa4; public MainWindow() { InitializeComponent(); Loaded += OnLoaded; } private void OnLoaded(object sender, RoutedEventArgs e) { IntPtr windIntPtr = new WindowInteropHelper(this).Handle; HwndSource hwndSource = HwndSource.FromHwnd(windIntPtr); hwndSource.AddHook(new HwndSourceHook(WndProc)); } private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled) { if ((msg == WM_SYSTEMMENU) && (wparam.ToInt32() == WP_SYSTEMMENU)) { handled = true; } return IntPtr.Zero; } }

推荐答案

使用此代码:

你需要设置windowstyle属性None.

U need to set the windowstyle property None.

属性:- WindowStyle = "None"

Property:- WindowStyle = "None"

<Window x:Class="ConextMenu_Sample.MainWindow" xmlns="schemas.microsoft/winfx/2006/xaml/presentation" xmlns:x="schemas.microsoft/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525" WindowStyle="None">

[或]

private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled) { if ((msg == WM_SYSTEMMENU) && (wparam.ToInt32() == WP_SYSTEMMENU)) { handled = false; // Change the Boolean Value to false // } return IntPtr.Zero; }