Wie deaktiviert man "Rechtsklick" auf WPF Webbrowser Control?

Question

Ich kann keine Antwort darauf finden. Weiß jemand?

Dank

Answer 1

Von der internen WebBrowserSite Klasse:

int UnsafeNativeMethods.IDocHostUIHandler.ShowContextMenu(int dwID, NativeMethods.POINT pt, object pcmdtReserved, object pdispReserved) 
{ 
    // Returning S_FALSE will allow the native control to do default processing, 
    // i.e., execute the shortcut key. Returning S_OK will cancel the context menu 

    return NativeMethods.S_FALSE; 
} 

Hart gebacken, können Sie dies nicht außer Kraft setzen können. Putting das WinForms WebBrower in einer Windows eine Abhilfe wäre, ist es eine intelligentere Implementierung dieser Methode für Sie, IsWebBrowserContextMenuEnabled Eigenschaft verwendet, und ermöglicht es Ihnen, Ihr eigenes Kontextmenü zu erstellen. Hier

Answer 2

ist der Code einer Utility-Klasse, die Sie WebBrowser Kontext des WPF-Menü deaktivieren können. Außerdem können Sie Skriptfehler (WPF WebBrowser control - how to supress script errors?) unterdrücken und IEs DOCHOSTUIFLAG ändern.

Nutzungs Beispiel:

public partial class Player : Window 
{ 
    private WebBrowserHostUIHandler _wbHandler; 

    public Player() 
    { 
     InitializeComponent(); 
     ... 
     _wbHandler = new WebBrowserHostUIHandler(MyWebBrower); 
     _wbHandler.IsWebBrowserContextMenuEnabled = false; 
    } 
} 

Utility-Code:

public class WebBrowserHostUIHandler : Native.IDocHostUIHandler 
{ 
    private const uint E_NOTIMPL = 0x80004001; 
    private const uint S_OK = 0; 
    private const uint S_FALSE = 1; 

    public WebBrowserHostUIHandler(WebBrowser browser) 
    { 
     if (browser == null) 
      throw new ArgumentNullException("browser"); 

     Browser = browser; 
     browser.LoadCompleted += OnLoadCompleted; 
     browser.Navigated += OnNavigated; 
     IsWebBrowserContextMenuEnabled = true; 
     Flags |= HostUIFlags.ENABLE_REDIRECT_NOTIFICATION; 
    } 

    public WebBrowser Browser { get; private set; } 
    public HostUIFlags Flags { get; set; } 
    public bool IsWebBrowserContextMenuEnabled { get; set; } 
    public bool ScriptErrorsSuppressed { get; set; } 

    private void OnNavigated(object sender, NavigationEventArgs e) 
    { 
     SetSilent(Browser, ScriptErrorsSuppressed); 
    } 

    private void OnLoadCompleted(object sender, NavigationEventArgs e) 
    { 
     Native.ICustomDoc doc = Browser.Document as Native.ICustomDoc; 
     if (doc != null) 
     { 
      doc.SetUIHandler(this); 
     } 
    } 

    uint Native.IDocHostUIHandler.ShowContextMenu(int dwID, Native.POINT pt, object pcmdtReserved, object pdispReserved) 
    { 
     return IsWebBrowserContextMenuEnabled ? S_FALSE : S_OK; 
    } 

    uint Native.IDocHostUIHandler.GetHostInfo(ref Native.DOCHOSTUIINFO info) 
    { 
     info.dwFlags = (int)Flags; 
     info.dwDoubleClick = 0; 
     return S_OK; 
    } 

    uint Native.IDocHostUIHandler.ShowUI(int dwID, object activeObject, object commandTarget, object frame, object doc) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.HideUI() 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.UpdateUI() 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.EnableModeless(bool fEnable) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.OnDocWindowActivate(bool fActivate) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.OnFrameWindowActivate(bool fActivate) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.ResizeBorder(Native.COMRECT rect, object doc, bool fFrameWindow) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.TranslateAccelerator(ref System.Windows.Forms.Message msg, ref Guid group, int nCmdID) 
    { 
     return S_FALSE; 
    } 

    uint Native.IDocHostUIHandler.GetOptionKeyPath(string[] pbstrKey, int dw) 
    { 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.GetDropTarget(object pDropTarget, out object ppDropTarget) 
    { 
     ppDropTarget = null; 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.GetExternal(out object ppDispatch) 
    { 
     ppDispatch = Browser.ObjectForScripting; 
     return S_OK; 
    } 

    uint Native.IDocHostUIHandler.TranslateUrl(int dwTranslate, string strURLIn, out string pstrURLOut) 
    { 
     pstrURLOut = null; 
     return E_NOTIMPL; 
    } 

    uint Native.IDocHostUIHandler.FilterDataObject(IDataObject pDO, out IDataObject ppDORet) 
    { 
     ppDORet = null; 
     return E_NOTIMPL; 
    } 

    public static void SetSilent(WebBrowser browser, bool silent) 
    { 
     Native.IOleServiceProvider sp = browser.Document as Native.IOleServiceProvider; 
     if (sp != null) 
     { 
      Guid IID_IWebBrowserApp = new Guid("0002DF05-0000-0000-C000-000000000046"); 
      Guid IID_IWebBrowser2 = new Guid("D30C1661-CDAF-11d0-8A3E-00C04FC9E26E"); 

      object webBrowser; 
      sp.QueryService(ref IID_IWebBrowserApp, ref IID_IWebBrowser2, out webBrowser); 
      if (webBrowser != null) 
      { 
       webBrowser.GetType().InvokeMember("Silent", BindingFlags.Instance | BindingFlags.Public | BindingFlags.PutDispProperty, null, webBrowser, new object[] { silent }); 
      } 
     } 
    } 
} 

internal static class Native 
{ 
    [ComImport, Guid("BD3F23C0-D43E-11CF-893B-00AA00BDCE1A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
    internal interface IDocHostUIHandler 
    { 
     [PreserveSig] 
     uint ShowContextMenu(int dwID, POINT pt, [MarshalAs(UnmanagedType.Interface)] object pcmdtReserved, [MarshalAs(UnmanagedType.Interface)] object pdispReserved); 

     [PreserveSig] 
     uint GetHostInfo(ref DOCHOSTUIINFO info); 

     [PreserveSig] 
     uint ShowUI(int dwID, [MarshalAs(UnmanagedType.Interface)] object activeObject, [MarshalAs(UnmanagedType.Interface)] object commandTarget, [MarshalAs(UnmanagedType.Interface)] object frame, [MarshalAs(UnmanagedType.Interface)] object doc); 

     [PreserveSig] 
     uint HideUI(); 

     [PreserveSig] 
     uint UpdateUI(); 

     [PreserveSig] 
     uint EnableModeless(bool fEnable); 

     [PreserveSig] 
     uint OnDocWindowActivate(bool fActivate); 

     [PreserveSig] 
     uint OnFrameWindowActivate(bool fActivate); 

     [PreserveSig] 
     uint ResizeBorder(COMRECT rect, [MarshalAs(UnmanagedType.Interface)] object doc, bool fFrameWindow); 

     [PreserveSig] 
     uint TranslateAccelerator(ref System.Windows.Forms.Message msg, ref Guid group, int nCmdID); 

     [PreserveSig] 
     uint GetOptionKeyPath([Out, MarshalAs(UnmanagedType.LPArray)] string[] pbstrKey, int dw); 

     [PreserveSig] 
     uint GetDropTarget([In, MarshalAs(UnmanagedType.Interface)] object pDropTarget, [MarshalAs(UnmanagedType.Interface)] out object ppDropTarget); 

     [PreserveSig] 
     uint GetExternal([MarshalAs(UnmanagedType.IDispatch)] out object ppDispatch); 

     [PreserveSig] 
     uint TranslateUrl(int dwTranslate, [MarshalAs(UnmanagedType.LPWStr)] string strURLIn, [MarshalAs(UnmanagedType.LPWStr)] out string pstrURLOut); 

     [PreserveSig] 
     uint FilterDataObject(IDataObject pDO, out IDataObject ppDORet); 
    } 

    [StructLayout(LayoutKind.Sequential)] 
    internal struct DOCHOSTUIINFO 
    { 
     public int cbSize; 
     public int dwFlags; 
     public int dwDoubleClick; 
     public IntPtr dwReserved1; 
     public IntPtr dwReserved2; 
    } 

    [StructLayout(LayoutKind.Sequential)] 
    internal struct COMRECT 
    { 
     public int left; 
     public int top; 
     public int right; 
     public int bottom; 
    } 

    [StructLayout(LayoutKind.Sequential)] 
    internal class POINT 
    { 
     public int x; 
     public int y; 
    } 

    [ComImport, Guid("3050F3F0-98B5-11CF-BB82-00AA00BDCE0B"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
    internal interface ICustomDoc 
    { 
     [PreserveSig] 
     int SetUIHandler(IDocHostUIHandler pUIHandler); 
    } 

    [ComImport, Guid("6D5140C1-7436-11CE-8034-00AA006009FA"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
    internal interface IOleServiceProvider 
    { 
     [PreserveSig] 
     uint QueryService([In] ref Guid guidService, [In] ref Guid riid, [MarshalAs(UnmanagedType.IDispatch)] out object ppvObject); 
    } 
} 

[Flags] 
public enum HostUIFlags 
{ 
    DIALOG = 0x00000001, 
    DISABLE_HELP_MENU = 0x00000002, 
    NO3DBORDER = 0x00000004, 
    SCROLL_NO = 0x00000008, 
    DISABLE_SCRIPT_INACTIVE = 0x00000010, 
    OPENNEWWIN = 0x00000020, 
    DISABLE_OFFSCREEN = 0x00000040, 
    FLAT_SCROLLBAR = 0x00000080, 
    DIV_BLOCKDEFAULT = 0x00000100, 
    ACTIVATE_CLIENTHIT_ONLY = 0x00000200, 
    OVERRIDEBEHAVIORFACTORY = 0x00000400, 
    CODEPAGELINKEDFONTS = 0x00000800, 
    URL_ENCODING_DISABLE_UTF8 = 0x00001000, 
    URL_ENCODING_ENABLE_UTF8 = 0x00002000, 
    ENABLE_FORMS_AUTOCOMPLETE = 0x00004000, 
    ENABLE_INPLACE_NAVIGATION = 0x00010000, 
    IME_ENABLE_RECONVERSION = 0x00020000, 
    THEME = 0x00040000, 
    NOTHEME = 0x00080000, 
    NOPICS = 0x00100000, 
    NO3DOUTERBORDER = 0x00200000, 
    DISABLE_EDIT_NS_FIXUP = 0x00400000, 
    LOCAL_MACHINE_ACCESS_CHECK = 0x00800000, 
    DISABLE_UNTRUSTEDPROTOCOL = 0x01000000, 
    HOST_NAVIGATES = 0x02000000, 
    ENABLE_REDIRECT_NOTIFICATION = 0x04000000, 
    USE_WINDOWLESS_SELECTCONTROL = 0x08000000, 
    USE_WINDOWED_SELECTCONTROL = 0x10000000, 
    ENABLE_ACTIVEX_INACTIVATE_MODE = 0x20000000, 
    DPI_AWARE = 0x40000000 
} 

Answer 3

Referenz mshtml

using mshtml; 

Dann Sie dies durch den Zugriff auf das Dokument tun können:

MainBrowser.Navigate("https://www.domain.com"); 

MainBrowser.LoadCompleted += (o, args) => 
{ 
    var doc = (HTMLDocumentEvents2_Event) MainBrowser.Document; 
    doc.oncontextmenu += obj => false; 
}; 

Answer 4

Dies ist eine alte Frage, aber ich hatte ein einzigartiges Problem, dass ich wollte/brauchte das neuere Csproj Dateiformat mit der .NET-Core-SDK zu verwenden, aber es hat eine known issue mit nicht Erweiterungsbibliotheken in der Lage zu verweisen, wie zum Beispiel mshtml. So fand ich schließlich eine Lösung, die ohne einen Verweis auf mshtml möglich ist.

Einige Anregungen kamen von https://stackoverflow.com/a/28464764/2646868, bei denen der Benutzer die WebBrowser.Document-Eigenschaft auf dynamic umwandelte.

Unter der Annahme, webView der Name Ihres WebBrowser Kontrolle ist, anschließen die LoadCompleted Ereignis wie so:

private void webView_LoadCompleted(object sender, NavigationEventArgs e) 
{ 
    dynamic document = webView.Document; 
    document.oncontextmenu += new Func<bool>(() => false); 
}