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The image palette can have more than the 256 entries a GIF supports, for example when the image was loaded from an XPM that declares a larger colour count. wxGIFHandler_GetPalette(), called when saving a GIF, copied every entry into the caller's fixed wxRGB pal[256] buffer, overflowing it. Such an image can't be represented as a GIF, so reject the save with an error message instead of overflowing the buffer or writing out a silently truncated palette. Closes #26532.
Tests
This directory contains tests for the library and is mostly useful for the
library developers. See the samples subdirectory for the examples that are
more useful to the application developers using the library.
If you do work on the library itself and would like to modify an existing or
add a new test, please see docs/contributing/how-to-write-unit-tests.md for
more information.
This file also contains the instructions for running the tests if you'd just like to do it to confirm that the library works correctly.