WPF与Win32的交互(1)-优快云博客

本文介绍如何在WPF应用程序中嵌入Win32按钮，通过创建自定义Win32ButtonHost类实现跨平台组件交互。该方法利用CreateWindowEx函数创建原生Windows控件，并将其作为子窗口添加到WPF界面。

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1、把Win32的按钮添加到WPF窗口中

1）添加如下的using指令

using System.Windows.Interop;
using System.Runtime.InteropServices;

2）创建Win32ButtonHost类

public class Win32ButtonHost : HwndHost

  {               

      IntPtr hwndHost = IntPtr.Zero;

      IntPtr hwndButton = IntPtr.Zero;
 
      public int ButtonWidth = 0;

      public int ButtonHeight = 0;
 
      private const int WS_CHILD = 0X40000000;

      private const int WS_VISIBLE = 0X10000000;

      private const int WS_BORDER = 0X00800000;
 
      public Win32ButtonHost(int width, int height)

      {

          ButtonWidth = width;

          ButtonHeight = height;

      }

    //CreateWindowEx函数

    [DllImport("user32.dll", EntryPoint = "CreateWindowEx", CharSet = CharSet.Auto)]

    internal static extern IntPtr CreateWindowEx(

        int dwExStyle,

        string lpszClassName,

        string lpszWindowName,

        int style,

        int x, int y,

        int width, int height,

        IntPtr hwndParent,

        IntPtr hMenu,

        IntPtr hInst,

        [MarshalAs(UnmanagedType.AsAny)] object pvParam

        );
 
    protected override HandleRef BuildWindowCore(HandleRef hwndParent)

    {

        hwndHost = CreateWindowEx(0, "static", "", WS_CHILD | WS_VISIBLE, 0, 0, ButtonWidth, ButtonHeight, hwndParent.Handle, IntPtr.Zero, IntPtr.Zero, 0);

        hwndButton = CreateWindowEx(0, "button", "Win32 Button", WS_CHILD | WS_VISIBLE | WS_BORDER, 0, 0, ButtonWidth, ButtonHeight, hwndHost, IntPtr.Zero, IntPtr.Zero, 0);

        return new HandleRef(this, hwndHost);

    }
 
    //DestoryWindow函数

    [DllImport("user32.dll", EntryPoint = "BuildWindowCore", CharSet = CharSet.Auto)]

    internal static extern bool DestoryWindow(IntPtr hwnd);
 
    protected override void DestroyWindowCore(HandleRef hwnd)

    {

        DestoryWindow(hwnd.Handle);

    }
}

3）WPF页面中使用Win32ButtonHost类

<Grid>

       <Border x:Name="myBorder" Margin="20" BorderBrush="LightBlue"  BorderThickness="2"/>

   </Grid>

Win32ButtonHost  win32ButtonHost= new Win32ButtonHost(100, 50);

 myBorder.Child = win32ButtonHost;

本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/archive/2011/09/08/2171860.html，如需转载请自行联系原作者