wpf中插入winform控件并获取句柄

因工作需要使用wpf做界面，而有个开发包依赖picturebox控件，上网研究了一下，总算弄通了。

首先在项目中添加引用System.Windows.Forms与WindowsFormsIntegration

//在wpf主界面添加       
xmlns:wfh="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration"
xmlns:wfc="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"

//添加winform控件
<Grid>
        <WindowsFormsHost x:Name="form1" HorizontalAlignment="Left" Height="500" Margin="10,65,0,0" VerticalAlignment="Top" Width="750">
            <wfc:FlowLayoutPanel x:Name="flowLayoutPanel1">

            </wfc:FlowLayoutPanel>
        </WindowsFormsHost>
</Grid>

获取句柄

            IntPtr flpHandle = flowLayoutPanel1.Handle;//仅限主界面代码段

动态创建picturebox放到flowLayoutPanel中

PictureBox pb = new PictureBox
{
　　Width = 500,
　　Height = 400,
　　Bounds = new System.Drawing.Rectangle(0, 0, 500, 400),
　　Name = "PictureBox" + Convert.ToString(index)
};

PictureBox temp = pb;
Control flp = Control.FromHandle(flpHandle);
//考虑动态创建可能存在跨线程访问，添加判断                        
if (flp.InvokeRequired)
{
　　flp.Invoke(new Action(
　　() => { flp.Controls.Add(temp); picHandle = temp.Handle; }
　　));
}
 else
{
20　　 flp.Controls.Add(pb);
}

 注意在非主界面程序段，不要调用界面元素，不然会报错InvalidaOperationException