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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 3573 | $show_screen = true; |
| 3574 | |
| 3575 | $screen_options = screen_options($screen); |
| 3576 | if ( $screen_options ) |
| 3577 | $show_screen = true; |
| 3578 | |
| 3579 | if ( !isset($_wp_contextual_help) ) |
| 3580 | $_wp_contextual_help = array(); |
| 3581 | |
| 3582 | $settings = apply_filters('screen_settings', '', $screen); |
| 3583 | |
| 3584 | switch ( $screen->id ) { |
| 3585 | case 'widgets': |
| 3586 | $settings = '<p><a id="access-on" href="widgets.php?widgets-access=on">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off">' . __('Disable accessibility mode') . "</a></p>\n"; |
| 3587 | $show_screen = true; |
| 3588 | break; |
| 3589 | } |
| 3590 | if( ! empty( $settings ) ) |
| 3591 | $show_screen = true; |