WPF使用WinForm控件遇到的一些问题

WPF使用WinForm控件PIctureBox实现视频流

<Window x:Class="Test.TestPictureBox"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:Test"
    xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" 
    mc:Ignorable="d" WindowStyle="None" AllowsTransparency="True"
    Title="TestPictureBox" Height="450" Width="800">
    <Grid>
        <WindowsFormsHost>
            <wf:PictureBox x:Name="pbVideo" />
        </WindowsFormsHost>
    </Grid>
</Window>

/// <summary>
/// TestPictureBox.xaml 的交互逻辑
/// </summary>
public partial class TestPictureBox : Window
{
    public TestPictureBox()
    {
        InitializeComponent();
        var handle = (this.pbVideo).Handle;
        // 此处设置handle接收视频
 
    }
}

测试过程中出现问题， 但在实际使用中发现PictureBox控件无法显示，查找资料发现是因为

AllowsTransparency="True"

导致WindowsFormsHost无法显示，去掉此属性又会导致窗体无法达到显示的效果，找到了WindowChrome

<Window x:Class="Test.TestPictureBox"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:Test"
    xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" 
    mc:Ignorable="d" WindowStyle="None" 
    WindowChrome.WindowChrome="{DynamicResource WindowChromeKey }"
    Title="TestPictureBox" Height="450" Width="800">
    <Window.Resources>
         <WindowChrome x:Key="WindowChromeKey" ResizeBorderThickness="0" 
             CaptionHeight="0" CornerRadius="0"  GlassFrameThickness="0"/>
    </Window.Resources>
    <Grid>
        <WindowsFormsHost>
            <wf:PictureBox x:Name="pbVideo" />
        </WindowsFormsHost>
    </Grid>
</Window>

参考资料

WindowChrome官方介绍
WinformHost Control does not shown when windows AllowTransparency = true
WPF在WindowStyle=None时去掉顶部白条

标签：控件,handle,TestPictureBox,WindowChrome,WPF,public,WinForm
来源： https://www.cnblogs.com/upslw/p/14759640.html