如何在vc ++ 6.0和vc ++ 2005中获得GIF透明色 [英] how to get GIF Transparency color in vc++ 6.0 and vc++ 2005

问题描述

如何在vc ++ 6.0和vc ++ 2005中获得GIF透明色?

how to get GIF Transparency color in vc++ 6.0 and vc++ 2005 ?

推荐答案

请参见 GIF规范. GIF的调色板最多可以包含256种颜色.可以从文件的开头偏移11处找到背景色的调色板索引，该索引由一个字节(值0-255)组成.要查找与之对应的实际颜色，请在全局颜色表"中查找该颜色.有关如何解析全局颜色表"的更多信息，请参见规格.

See the GIF specification. GIFs have a palette of up to 256 possible colors. The palette index of the background color can be found at offset 11 from the beginning of the file, and consists of a single byte (value 0-255). To find the actual color that this corresponds to, look up that color in the Global Color Table. See the spec for more information on how to parse the Global Color Table.

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