3 calls to image_gd_check_settings()

ImageToolkitGdTestCase::testManipulations in modules/simpletest/tests/image.test
Since PHP can't visually check that our images have been manipulated properly, build a list of expected color values for each of the corners and the expected height and widths for the final images.
image_gd_settings in modules/system/image.gd.inc
Retrieve settings for the GD2 toolkit.
system_image_toolkits in modules/system/system.module
Implements hook_image_toolkits().

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