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

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

1 //添加winform控件
2 <Grid>
3         <WindowsFormsHost x:Name="form1" HorizontalAlignment="Left" Height="500" Margin="10,65,0,0" VerticalAlignment="Top" Width="750">
4             <wfc:FlowLayoutPanel x:Name="flowLayoutPanel1">
5 
6             </wfc:FlowLayoutPanel>
7         </WindowsFormsHost>
8 </Grid>

获取句柄

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

动态创建picturebox放到flowLayoutPanel中

 1 PictureBox pb = new PictureBox
 2 {
 3 　　Width = 500,
 4 　　Height = 400,
 5 　　Bounds = new System.Drawing.Rectangle(0, 0, 500, 400),
 6 　　Name = "PictureBox" + Convert.ToString(index)
 7 };
 8 
 9 PictureBox temp = pb;
10 Control flp = Control.FromHandle(flpHandle);
11 //考虑动态创建可能存在跨线程访问，添加判断                        
12 if (flp.InvokeRequired)
13 {
14 　　flp.Invoke(new Action(
15 　　() => { flp.Controls.Add(temp); picHandle = temp.Handle; }
16 　　));
17 }
18  else
19 {
20　　 flp.Controls.Add(pb);
21 }

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