views_handler_area::init in core/modules/views/handlers/views_handler_area.inc

Overrides views_handler::init().

views_handler_argument::init in core/modules/views/handlers/views_handler_argument.inc

init the handler with necessary data.

views_handler_field::init in core/modules/views/handlers/views_handler_field.inc

init the handler with necessary data.

views_handler_filter::init in core/modules/views/handlers/views_handler_filter.inc

Provide some extra help to get the operator/value easier to use.

views_handler_relationship::init in core/modules/views/handlers/views_handler_relationship.inc

Init handler to let relationships live on tables other than the table they operate on.

views_handler_sort_group_by_numeric::init in core/modules/views/handlers/views_handler_sort_group_by_numeric.inc

init the handler with necessary data.