Define image toolkits provided by this module.
The file which includes each toolkit's functions must be included in this hook.
The toolkit's functions must be named image_toolkitname_operation(). where the operation may be:
An array with the toolkit name as keys and sub-arrays with these keys:
Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.
function hook_image_toolkits() {
return array(
'working' => array(
'title' => t('A toolkit that works.'),
'available' => TRUE,
),
'broken' => array(
'title' => t('A toolkit that is "broken" and will not be listed.'),
'available' => FALSE,
),
);
}