通过SDK捕获摄像头流，需要IntPtr到WPF中的窗口(没有空域问题)

using System;
using System.Drawing;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media.Imaging;
using System.Windows.Controls;

namespace WpfApp
{
    public partial class MainWindow : Window
    {
        private IntPtr cameraStreamPtr; // 摄像头流的指针

        public MainWindow()
        {
            InitializeComponent();
        }

        private void StartCaptureButton_Click(object sender, RoutedEventArgs e)
        {
            // 使用SDK函数捕获摄像头流，将结果保存到cameraStreamPtr中
            // ...

            // 将IntPtr转换为Bitmap对象
            Bitmap bitmap = new Bitmap(cameraStreamPtr);

            // 将Bitmap转换为BitmapSource对象
            BitmapSource bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
                bitmap.GetHbitmap(),
                IntPtr.Zero,
                Int32Rect.Empty,
                BitmapSizeOptions.FromEmptyOptions());

            // 设置MediaElement的Source属性为BitmapSource对象
            mediaElement.Source = bitmapSource;
        }
    }
}