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Title Object type File name Summary
hook_hook_info_alter function modules/system/system.api.php Alter information from hook_hook_info().
hook_html_head_alter function modules/system/system.api.php Alter XHTML HEAD tags before they are rendered by drupal_get_html_head().
hook_image_default_styles function modules/image/image.api.php Provide module-based image styles for reuse throughout Drupal.
hook_image_effect_info function modules/image/image.api.php Define information about image effects provided by a module.
hook_image_effect_info_alter function modules/image/image.api.php Alter the information provided in hook_image_effect_info().
hook_image_styles_alter function modules/image/image.api.php Modify any image styles provided by other modules or the user.
hook_image_style_delete function modules/image/image.api.php Respond to image style deletion.
hook_image_style_flush function modules/image/image.api.php Respond to image style flushing.
hook_image_style_save function modules/image/image.api.php Respond to image style updating.
hook_image_toolkits function modules/system/system.api.php Define image toolkits provided by this module.
hook_init function modules/system/system.api.php Perform setup tasks for non-cached page requests.
hook_insert function modules/node/node.api.php Respond to creation of a new node.
hook_install function modules/system/system.api.php Perform setup tasks when the module is installed.
hook_install_tasks function modules/system/system.api.php Return an array of tasks to be performed by an installation profile.
hook_install_tasks_alter function modules/system/system.api.php Alter the full list of installation tasks.
hook_js_alter function modules/system/system.api.php Perform necessary alterations to the JavaScript before it is presented on
the page.
hook_language_fallback_candidates_alter function modules/system/language.api.php Perform alterations on the language fallback candidates.
hook_language_init function modules/system/language.api.php Allows modules to act after language initialization has been performed.
hook_language_negotiation_info function modules/system/language.api.php Define language negotiation providers.
hook_language_negotiation_info_alter function modules/system/language.api.php Perform alterations on language negoiation providers.
hook_language_switch_links_alter function modules/system/language.api.php Perform alterations on language switcher links.
hook_language_types_info function modules/system/language.api.php Define language types.
hook_language_types_info_alter function modules/system/language.api.php Perform alterations on language types.
hook_library function modules/system/system.api.php Registers JavaScript/CSS libraries associated with a module.
hook_library_alter function modules/system/system.api.php Alters the JavaScript/CSS library registry.
hook_load function modules/node/node.api.php Act on nodes being loaded from the database.
hook_locale function modules/locale/locale.api.php Allows modules to define their own text groups that can be translated.
hook_mail function modules/system/system.api.php Prepare a message based on parameters; called from drupal_mail().
hook_mail_alter function modules/system/system.api.php Alter an email message created with the drupal_mail() function.
hook_menu function modules/system/system.api.php Define menu items and page callbacks.
hook_menu_alter function modules/system/system.api.php Alter the data being saved to the {menu_router} table after hook_menu is invoked.
hook_menu_breadcrumb_alter function modules/system/system.api.php Alter links in the active trail before it is rendered as the breadcrumb.
hook_menu_contextual_links_alter function modules/system/system.api.php Alter contextual links before they are rendered.
hook_menu_delete function modules/menu/menu.api.php Respond to a custom menu deletion.
hook_menu_get_item_alter function modules/system/system.api.php Alter a menu router item right after it has been retrieved from the database or cache.
hook_menu_insert function modules/menu/menu.api.php Respond to a custom menu creation.
hook_menu_link_alter function modules/system/system.api.php Alter the data being saved to the {menu_links} table by menu_link_save().
hook_menu_link_delete function modules/system/system.api.php Inform modules that a menu link has been deleted.
hook_menu_link_insert function modules/system/system.api.php Inform modules that a menu link has been created.
hook_menu_link_update function modules/system/system.api.php Inform modules that a menu link has been updated.
hook_menu_local_tasks_alter function modules/system/system.api.php Alter tabs and actions displayed on the page before they are rendered.
hook_menu_site_status_alter function modules/system/system.api.php Control site status before menu dispatching.
hook_menu_update function modules/menu/menu.api.php Respond to a custom menu update.
hook_modules_disabled function modules/system/system.api.php Perform necessary actions after modules are disabled.
hook_modules_enabled function modules/system/system.api.php Perform necessary actions after modules are enabled.
hook_modules_installed function modules/system/system.api.php Perform necessary actions after modules are installed.
hook_modules_uninstalled function modules/system/system.api.php Perform necessary actions after modules are uninstalled.
hook_module_implements_alter function modules/system/system.api.php Alter the registry of modules implementing a hook.
hook_multilingual_settings_changed function modules/locale/locale.api.php Allow modules to react to language settings changes.
hook_node_access function modules/node/node.api.php Control access to a node.

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