Search for alter

Title	Object type	File name	Summary
hook_block_cid_parts_alter	function	modules/block/block.api.php	Act on block cache ID (cid) parts before the cid is generated.
hook_block_info_alter	function	modules/block/block.api.php	Change block definition before saving to the database.
hook_block_list_alter	function	modules/block/block.api.php	Act on blocks prior to rendering.
hook_block_view_alter	function	modules/block/block.api.php	Perform alterations to the content of a block.
hook_block_view_MODULE_DELTA_alter	function	modules/block/block.api.php	Perform alterations to a specific block.
hook_comment_view_alter	function	modules/comment/comment.api.php	The comment was built; the module may modify the structured content.
hook_contextual_links_view_alter	function	modules/contextual/contextual.api.php	Alter a contextual links element before it is rendered.
hook_countries_alter	function	modules/system/system.api.php	Alter the default country list.
hook_cron_queue_info_alter	function	modules/system/system.api.php	Alter cron queue information before cron runs.
hook_css_alter	function	modules/system/system.api.php	Alter CSS files before they are output on the page.
hook_dashboard_regions_alter	function	modules/dashboard/dashboard.api.php	Alter dashboard regions provided by modules.
hook_date_formats_alter	function	modules/system/system.api.php	Alter date formats declared by another module.
hook_date_format_types_alter	function	modules/system/system.api.php	Modify existing date types.
hook_drupal_goto_alter	function	modules/system/system.api.php	Change the page the user is sent to by drupal_goto().
hook_element_info_alter	function	modules/system/system.api.php	Alter the element type information returned from modules.
hook_entity_info_alter	function	modules/system/system.api.php	Alter the entity info.
hook_entity_query_alter	function	modules/system/system.api.php	Alter or execute an EntityFieldQuery.
hook_entity_view_alter	function	modules/system/system.api.php	Alter the results of ENTITY_view().
hook_entity_view_mode_alter	function	modules/system/system.api.php	Change the view mode of an entity that is being displayed.
hook_field_attach_prepare_translation_alter	function	modules/field/field.api.php	Perform alterations on field_attach_prepare_translation().
hook_field_attach_preprocess_alter	function	modules/field/field.api.php	Alter field_attach_preprocess() variables.
hook_field_attach_view_alter	function	modules/field/field.api.php	Perform alterations on field_attach_view() or field_view_field().
hook_field_available_languages_alter	function	modules/field/field.api.php	Alter field_available_languages() values.
hook_field_display_alter	function	modules/field/field.api.php	Alters the display settings of a field before it gets displayed.
hook_field_display_ENTITY_TYPE_alter	function	modules/field/field.api.php	Alters the display settings of a field on a given entity type before it gets displayed.
hook_field_extra_fields_alter	function	modules/field/field.api.php	Alter "pseudo-field" components on fieldable entities.
hook_field_extra_fields_display_alter	function	modules/field/field.api.php	Alters the display settings of pseudo-fields before an entity is displayed.
hook_field_formatter_info_alter	function	modules/field/field.api.php	Perform alterations on Field API formatter types.
hook_field_info_alter	function	modules/field/field.api.php	Perform alterations on Field API field types.
hook_field_language_alter	function	modules/field/field.api.php	Perform alterations on field_language() values.
hook_field_storage_details_alter	function	modules/field/field.api.php	Perform alterations on Field API storage details.
hook_field_storage_info_alter	function	modules/field/field.api.php	Perform alterations on Field API storage types.
hook_field_widget_form_alter	function	modules/field/field.api.php	Alter forms for field widgets provided by other modules.
hook_field_widget_info_alter	function	modules/field/field.api.php	Perform alterations on Field API widget types.
hook_field_widget_properties_alter	function	modules/field/field.api.php	Alters the widget properties of a field instance before it gets displayed.
hook_field_widget_properties_ENTITY_TYPE_alter	function	modules/field/field.api.php	Alters the widget properties of a field instance on a given entity type before it gets displayed.
hook_field_widget_WIDGET_TYPE_form_alter	function	modules/field/field.api.php	Alter widget forms for a specific widget provided by another module.
hook_filetransfer_info_alter	function	modules/system/system.api.php	Alter the FileTransfer class registry.
hook_file_download_access_alter	function	modules/file/file.api.php	Alter the access rules applied to a file download.
hook_file_mimetype_mapping_alter	function	modules/system/system.api.php	Alter MIME type mappings used to determine MIME type from a file extension.
hook_file_url_alter	function	modules/system/system.api.php	Alter the URL to a file.
hook_filter_info_alter	function	modules/filter/filter.api.php	Perform alterations on filter definitions.
hook_form_alter	function	modules/system/system.api.php	Perform alterations before a form is rendered.
hook_form_BASE_FORM_ID_alter	function	modules/system/system.api.php	Provide a form-specific alteration for shared ('base') forms.
hook_form_FORM_ID_alter	function	modules/system/system.api.php	Provide a form-specific alteration instead of the global hook_form_alter().
hook_form_system_theme_settings_alter	function	modules/system/theme.api.php	Allow themes to alter the theme-specific settings form.
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_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.

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