System.Drawing.Image.FromStream（）在Windows XP上的“参数无效”

以下在我的Windows 7开发机器上工作正常，但是在Windows XP上运行时出现异常并声明“Parameter is not valid”最后一行？System.Drawing.Image.FromStream（）在Windows XP上的“参数无效”

private string base64String = 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AAAAAAAAAAAAAAAAAAHmwdXmwdXmwdXmwdQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///////n////x////8f////H////x////4f///+H////h////4P///+D////A////wH///8B////APwf/wDgD/8AAB//AAP//wAP/P8AP/h+AH/wAAB/8AAAf/AAAH/wAAAf+AGAAAwHgAAf/8AAP//gD///8B////h///////"; 

byte[] bytes = Convert.FromBase64String(base64String); 
System.IO.MemoryStream ms = new System.IO.MemoryStream(bytes); 
System.Drawing.Image b = System.Drawing.Image.FromStream(ms, false, false);

这个base64字符串字符串在两个操作系统上都能正常工作。它也是一个图标，但尺寸较小：

"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"

来源

2013-03-18 PhatBuck

什么格式是字节[]的数据？它是直接从光盘读取的图像文件还是现有的图像对象？另外，您是否在两台机器上都使用相同版本的.NET？问题可能是您的图像格式在一种情况下受支持，但不是两种情况。也许可以尝试用更安全的格式（比如位图）重复测试，看看它是否以这种方式工作。 – Fopedush 2013-03-18 14:32:11

要验证您的字节数组是否有效，可以尝试将其写入文件，然后查看是否可以将该文件作为有效图像打开。 – mbeckish 2013-03-18 14:35:12

您也可以尝试在创建图像之前将流重置为开始： ms.Seek（0，SeekOrigin.Begin）; – mbeckish 2013-03-18 14:47:37

XP真的在牙齿上变长。它缺少的一点是gdiplus.dll的版本1.10，这是GDI +的更新，它随Vista首次发布。在该版本中有很多修复，对于一个它现在实际上支持ImageFormat.Icon。

您的图像数据代表.ico文件。改为使用Icon（Stream）构造函数。您可能仍然有24bpp图标的问题，我无法再检查。

来源

2013-03-18 18:18:04

非常感谢汉斯，这解决了我的问题。 – PhatBuck 2013-03-19 08:40:42

干得不错，汉斯。还有其他几个关于这个错误的问题，并没有真正解决。正如你可能从我删除的答案中看到的那样，我越来越接近了，但在删除之后，我突然不再在意了。 – 2013-03-20 03:26:46

using (MemoryStream ms = new MemoryStream()) 
    { 
     image.Save(ms,System.Drawing.Imaging.ImageFormat.Jpeg); 
     ms.Seek(0,0); 
     byte[] data = new byte[0]; 
     data = ms.ToArray();   
    }

我要访问的bracket.how之外的数据做

来源

2014-05-01 15:20:39 sagivasan

嗨，sagivasan，欢迎来到StackExchange。你已经把你的问题作为对别人问题的答案;最好是开始一个新的问题。（提示：你需要做的只是在'using'块之外声明'data'，顺便说一句，当你声明它时，你也不需要分配'new byte [0]'）。 – 2015-01-07 17:40:25

System.Drawing.Image.FromStream（）在Windows XP上的“参数无效”

回答

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