config_import_full_form_submit in core/modules/config/config.admin.inc

Submit handler for config_import_full_form().

FileUnitTestCase::testImageDimensions in core/modules/file/tests/file.test

Tests storing image height and width as file metadata.

file_delete_form_submit in core/modules/file/file.pages.inc

Form submission handler for file_delete_form().

file_example_delete_submit in modules/examples/file_example/file_example.module

Submit handler to delete a file.

file_managed_file_submit in core/modules/file/file.module

Form submission handler for upload / remove buttons of managed_file elements.

image_example_style_form_submit in modules/examples/image_example/image_example.pages.inc

Form Builder; Display a form for uploading an image.

UserStorageController::preSave in core/modules/user/user.entity.inc

Overrides EntityDatabaseStorageController::preSave().

_image_field_default_image_validate in core/modules/image/image.field.inc

Element validation function for setting a default image.