Lines Matching refs:read_data_fn
32 if (png_ptr->read_data_fn != NULL)
33 (*(png_ptr->read_data_fn))(png_ptr, data, length);
131 read_data_fn - pointer to a new input function that takes as its
139 png_rw_ptr read_data_fn)
145 if (read_data_fn != NULL)
146 png_ptr->read_data_fn = read_data_fn;
148 png_ptr->read_data_fn = png_default_read_data;
150 png_ptr->read_data_fn = read_data_fn;
158 "It's an error to set both read_data_fn and write_data_fn in the ");
