WordPress at a glance
action is not described

wp_ajax_crop_image_pre_save action-hook . WP 4.3.0

Fires before a cropped image is saved.

Allows to add filters to modify the way a cropped image is saved.

Usage

add_action( 'wp_ajax_crop_image_pre_save', 'action_function_name_9422', 10, 3 );
function action_function_name_9422( $context, $attachment_id, $cropped ){
	// action...
}
$context(string)
The Customizer control requesting the cropped image.
$attachment_id(int)
The attachment ID of the original image.
$cropped(string)
Path to the cropped image file.

Where the hook is called

wp_ajax_crop_image()
wp-admin/includes/ajax-actions.php 3281
do_action( 'wp_ajax_crop_image_pre_save', $context, $attachment_id, $cropped );

Where the hook is used (in WP core)

Does not used.