转载：Qt 4.7.4 - problem with libpng

QT4.7.4的Windows版本有臭虫，在操作PNG图片时會报告勒個警告：libpng warning: Interlace handling should be turned on when using png_read_image。将QT升级到4.8.0就可以解决。软件有臭虫很正常，不必惊慌。

http://www.qtcentre.org/threads/44544-Qt-4-7-4-problem-with-libpng

亮点：

Hi,

This bug was identified and will be fixed. See:

[ https://bugreports.qt.nokia.com/brow...comment-164128 ]

Leonard Lee commented on QTBUG-21408:
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This issue was fixed in QTBUG-13298 for Qt 4.8.