.net - 我需要处理这个 Image 实例吗？

Question

我正在制作一个简单的图像调试器可视化工具。代码如下。我不确定是否需要手动处置 Image 实例？因为我正在制作一个 Windows 窗体窗口和其中包含动态图像的 PictureBox .. 当窗体终止时我是否需要添加一些特殊代码来处理它？

这是代码..

using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;
using Microsoft.VisualStudio.DebuggerVisualizers;
using DebuggerVisualizers;

[assembly: DebuggerVisualizer(
    typeof (ImageDebuggerVisualizer),
    typeof (VisualizerObjectSource),
    Target = typeof (Image),
    Description = "Image Visualizer")]

namespace DebuggerVisualizers
{
    public class ImageDebuggerVisualizer : DialogDebuggerVisualizer
    {
        protected override void Show(IDialogVisualizerService windowService, IVisualizerObjectProvider objectProvider)
        {
            Image image = (Image) objectProvider.GetObject();
            Form form = new Form
                           {
                               Text = ("Image Visualizer - " + image.HorizontalResolution + " " + image.VerticalResolution),
                               Width = image.Width,
                               Height = image.Height
                           };

            PictureBox pictureBox = new PictureBox {Image = image, SizeMode = PictureBoxSizeMode.AutoSize};
            form.Controls.Add(pictureBox);
            form.ShowDialog();
        }
    }
}

感谢您的帮助:)

Answer 1

将您的显示方法更改为:

protected override void Show(IDialogVisualizerService windowService,
    IVisualizerObjectProvider objectProvider)        
{            
    Image image = (Image) objectProvider.GetObject();
    using (Form form = new Form())
    {            
        PictureBox pictureBox = new PictureBox();    
        pictureBox.Image = image;        
        form.Controls.Add(pictureBox); 
        form.ShowDialog();
    } 
}

using(){} block 将在表单关闭后调用 Dispose，这也将处理表单上的所有内容。