PowerPoint 2010内存泄漏？... [英] PowerPoint 2010 memory leak?...

问题描述

您好，

我正在为Microsoft PowerPoint开发自定义插件。我的插件需要将大量二进制数据存储到PowerPoint演示文稿中。我将这个二进制数据作为基本64位编码字符串存储到PowerPoint演示文稿标签我发现，当演示文稿
在其标签中包含大量数据（例如10+兆字节）时，PowerPoint在保存演示文稿时似乎会泄漏内存。因此，当这样的演示文稿多次保存时，PowerPoint甚至会耗尽系统内存并崩溃。

I developing a custom addin for Microsoft PowerPoint. My addin needs to store large amount of binary data into PowerPoint presentation. I store this binary data as base 64 encoded strings into PowerPoint presentation tags. I found, that when presentation contains huge amount of data in its tags (like 10+ megabytes), PowerPoint seems to be leaking memory when saving the presentation. So when such presentation is saved multiple times, PowerPoint even my run out of system memory and crash.

我开发了一个非常简单的C＃插件来隔离问题。它在创建新演示文稿时将50兆字节的二进制数据存储到演示文稿中：

I developed a very simple C# addin to isolate the issue. It stores 50 megabytes of binary data into presentation when new presentation is created:

        private void Application_AfterNewPresentation(PowerPoint.Presentation presentation)
        {
            int tagLength = 5 * 1000 * 1000;
            StringBuilder largeTagValue = new StringBuilder();
            largeTagValue.Capacity = tagLength + 2;
            for (int i = 0; i < tagLength; i++)
            {
                largeTagValue.Append("A");
            }
            largeTagValue.Append("\0");
            string largeTagValueString = largeTagValue.ToString();
            for (int i = 0; i < 10; i++)
            {
                presentation.Tags.Add("LARGE_TAG" + i.ToString(), largeTagValueString);
            }
        }

运行此插件后，我甚至可以禁用它确保它不再做任何事情。接下来，我多次保存演示文稿，并在每次保存演示文稿时看到进程列表中的PowerPoint内存使用量增长。

After running this addin, I may even disable it to make sure that it not does anything more. Next, I am saving the presentation multiple times and see that PowerPoint memory usage in process list grows each time I save the presentation.

完整的源代码和示例演示文稿可用  这里

The complete source code and sample presentation is available here

有谁知道它是PowerPoint错误还是有解决方法？...

Does anyone know if it is a PowerPoint bug or is there any workaround for this?...

推荐答案

我无法重现你的场景。

I cannot reproduce your scenario.

您可以禁用其他插件，看看是否可以再次重现此方案。

You can disable other addins and see whether you can reproduce this scenario again.

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