从 VSTO Addin 获取 Outlook 窗口

Question

我有一个Outlook 2013 VSTO 插件。我想将我创建的saveFileDialog居中。为此，您需要向其传递Window父级的对象。我不确定 和IWin32Window是否Window相同，但这就是我所拥有的。

public IWin32Window getWindowHandle()
{
    dynamic activeWindow = Globals.ThisAddIn.Application.ActiveWindow();
    IntPtr outlookHwnd = new OfficeWin32Window(activeWindow).Handle;
    IWin32Window win = Control.FromHandle(outlookHwnd);

    return win;
}

该SaveFileDialog.ShowDialog(Window)方法需要一个窗口。我可以通过吗IWin32Window？除了 之外，还有其他方法可以Window从处理程序获取对象吗Control.FromHandle？

任何批评都将受到欢迎。

谢谢

编辑：

哦，还有该函数的辅助类：

public class OfficeWin32Window : IWin32Window
{
   [DllImport("user32")]
   public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

   IntPtr _windowHandle = IntPtr.Zero;

   public IntPtr Handle
   {
      get { return _windowHandle; }
   }

   public OfficeWin32Window(object windowObject)
   {
      string caption = windowObject.GetType().InvokeMember("Caption", System.Reflection.BindingFlags.GetProperty, null, windowObject, null).ToString();

   // try to get the HWND ptr from the windowObject / could be an Inspector window or an explorer window
   _windowHandle = FindWindow("rctrl_renwnd32\0", caption);
   }
}

我得到了这段代码，所以我确实有一个关于它的附带问题：
它有什么FindWindow("rctrl_renwnd32\0", caption)作用？我根本不明白。特别是“rctrl_renwnd32\0”部分。

编辑：

IOleWindow 类的新函数：

    public IOleWindow getWindowHandle()
    {
        dynamic activeWindow = Globals.ThisAddIn.Application.ActiveWindow();
        IOleWindow win = activeWindow as IOleWindow;
        window = win.GetWindow();
        //IntPtr outlookHwnd = new OfficeWin32Window(activeWindow).Handle;
        //IWin32Window wind = Control.FromHandle(outlookHwnd);

        return window;
    }

编辑2：

我更新了逻辑，我删除了该函数并将其添加到我需要句柄的位置：

Inspector currentObject = Globals.ThisAddIn.Application.ActiveInspector();
var winh = currentObject as IOleWindow;
IntPtr win = winh.GetWindow();

编辑3：

重组：

Inspector currentObject = Globals.ThisAddIn.Application.ActiveInspector();
var winh = currentObject as IOleWindow;
IntPtr win;
winh.GetWindow(out win);

Answer 1

FindWindow方法检索类名和窗口名与指定字符串匹配的顶级窗口的句柄。第一个参数指定窗口类名称。第二个参数是窗口名称（窗口的标题）。如果此参数为 NULL，则所有窗口名称都匹配。

您需要将 Explorer 或 Inspector 窗口转换为 IOleWindow 接口，并使用GetWindow方法来获取窗口句柄，而不是使用 FindWindow 函数。

 /// <summary>
 /// Implemented and used by containers and objects to obtain window handles 
 /// and manage context-sensitive help.
 /// </summary>
 /// <remarks>
 /// The IOleWindow interface provides methods that allow an application to obtain  
 /// the handle to the various windows that participate in in-place activation, 
 /// and also to enter and exit context-sensitive help mode.
 /// </remarks>
 [ComImport]
 [Guid("00000114-0000-0000-C000-000000000046")]
 [InterfaceType (ComInterfaceType.InterfaceIsIUnknown)]
 public interface IOleWindow
 {
     /// <summary>
     /// Returns the window handle to one of the windows participating in in-place activation 
     /// (frame, document, parent, or in-place object window).
     /// </summary>
     /// <param name="phwnd">Pointer to where to return the window handle.</param>
     void GetWindow (out IntPtr phwnd) ;

     /// <summary>
     /// Determines whether context-sensitive help mode should be entered during an 
     /// in-place activation session.
     /// </summary>
     /// <param name="fEnterMode"><c>true</c> if help mode should be entered; 
     /// <c>false</c> if it should be exited.</param>
     void ContextSensitiveHelp ([In, MarshalAs(UnmanagedType.Bool)] bool fEnterMode) ;
 }

IWin32Window 接口的实例用于指定 Show 或 ShowDialog 方法的父窗口句柄。