从WPF窗口获取System.Windows.Forms.IWin32Window

问题描述

我正在写一个WPF应用程序，我想使用的。

I'm writing a WPF app, and I'd like to make use of this library.

我可以得到一个的IntPtr 为窗口，通过使用

I can get an IntPtr for the window by using

new WindowInteropHelper(this).Handle

但不会转换为 System.Windows.Forms.IWin32Window ，我需要出示此的WinForms对话框。

but that won't cast to System.Windows.Forms.IWin32Window, which I need to show this WinForms dialog.

我如何投的IntPtr 到 System.Windows.Forms.IWin32Window ？

推荐答案

选项1

IWin32Window只需要一个处理属性，因为你已经拥有的IntPtr这是不是太难以实施。 类，它实现IWin32Window的包装：

IWin32Window only expects a Handle property, which is not too difficult to implement since you already have the IntPtr. Create a wrapper class that implements IWin32Window:

public class WindowWrapper : System.Windows.Forms.IWin32Window
{
    public WindowWrapper(IntPtr handle)
    {
        _hwnd = handle;
    }

    public WindowWrapper(Window window)
    {
        _hwnd = new WindowInteropHelper(window).Handle;
    }

    public IntPtr Handle
    {
        get { return _hwnd; }
    }

    private IntPtr _hwnd;
}

您然后会得到你的IWin32Window是这样的：

You would then get your IWin32Window like this:

IWin32Window win32Window = new WindowWrapper(new WindowInteropHelper(this).Handle);

或（响应KeithS'建议）：

or (in response to KeithS' suggestion):

IWin32Window win32Window = new WindowWrapper(this);

选项2 （感谢斯科特张伯伦的评论）

OPTION 2 (thx to Scott Chamberlain's comment)

使用现有的NativeWindow类，它实现了IWin32Window：

Use the existing NativeWindow class, which implements IWin32Window:

IWin32Window win32Window = new NativeWindow(); 
win32Window.AssignHandle(new WindowInteropHelper(this).Handle);

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