PNG_ALL_FILTERS

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.

version(!PNG_VERSION_INFO_ONLY)

extern (C)

enum PNG_ALL_FILTERS = (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | PNG_FILTER_AVG | PNG_FILTER_PAETH);

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