wp_dashboard

function _wp_dashboard_control_callback( $dashboard, $meta_box ) {
	echo '<form method="post" class="dashboard-widget-control-form wp-clearfix">';
	wp_dashboard_trigger_widget_control( $meta_box['id'] );
	wp_nonce_field( 'edit-dashboard-widget_' . $meta_box['id'], 'dashboard-widget-nonce' );
	echo '<input type="hidden" name="widget_id" value="' . esc_attr( $meta_box['id'] ) . '" />';
	submit_button( __( 'Submit' ) );
	echo '</form>';
}

/**
 * Displays the dashboard.
 *
 * @since 2.5.0
 */
function wp_dashboard() {
	$screen      = get_current_screen();
	$columns     = absint( $screen->get_columns() );
	$columns_css = '';
	if ( $columns ) {
		$columns_css = " columns-$columns";
	}

	?>
<div id="dashboard-widgets" class="metabox-holder<?php echo $columns_css; ?>">
	<div id="postbox-container-1" class="postbox-container">
	<?php do_meta_boxes( $screen->id, 'normal', '' ); ?>
	</div>
	<div id="postbox-container-2" class="postbox-container">
	<?php do_meta_boxes( $screen->id, 'side', '' ); ?>