LSB Graphics Extensions Specification
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png_get_user_chunk_ptr

Name

png_get_user_chunk_ptr -- get pointer to user chunk data

#include <png.h>

png_voidp png_get_user_chunk_ptr(png_structp png_ptr);

This interface shall return the pointer to the user chunk data associated with the specified PNG file.

The parameter png_ptr shall specify the PNG file.

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png_get_unknown_chunks	Up	png_get_valid