如何在UWP中使用颜色窃取

using Windows.UI.Xaml.Media.Imaging;
using Windows.Graphics.Imaging;

// 获取屏幕截图
GraphicsCapturePicker picker = new GraphicsCapturePicker();
GraphicsCaptureItem item = await picker.PickSingleItemAsync();
GraphicsCaptureSession session = new GraphicsCaptureSession();
await session.StartCaptureAsync(item);

// 将屏幕截图转换为SoftwareBitmap
SoftwareBitmap bitmap = await session.CaptureFrameAsync();

// 分析颜色
using (SoftwareBitmapBuffer buffer = bitmap.LockBuffer(BitmapBufferAccessMode.Read))
{
    BitmapPlaneDescription plane = buffer.GetPlaneDescription(0);
    unsafe
    {
        byte* data = null;
        buffer.TryGetPlanePointer(0, out data);

        for (int row = 0; row < plane.Height; row++)
        {
            for (int col = 0; col < plane.Width; col++)
            {
                byte* pixel = data + row * plane.Stride + col * 4;
                byte blue = pixel[0];
                byte green = pixel[1];
                byte red = pixel[2];
                byte alpha = pixel[3];

                // 在此处可以对颜色进行处理或显示
            }
        }
    }
}