Place a 16-bit number into a buffer in PNG byte order. * The parameter is declared unsigned int, not png_uint_16, * just to avoid potential problems

Write the data of a PNG chunk started with png_write_chunk_header(). * Note that multiple calls to this function are allowed, and that the * sum of

Number of dimensions

\addtogroup python_builtins @{

Write a PNG chunk all at once. The type is an array of ASCII characters * representing the chunk name. The array must be at least 4 bytes in * len

Dimensions of the array

This is the shared test on whether a gamma value is 'significant' - whether * it is worth doing gamma correction. */

Utility to safely appends strings to a buffer. This never errors out so * error checking is not required in the caller. */