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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1810 | |
| 1811 | if ( $wp_styles->query( $handle ) ) { |
| 1812 | if ( $force_echo || did_action( 'wp_print_styles' ) ) // we already printed the style queue. Print this one immediately |
| 1813 | wp_print_styles( $handle ); |
| 1814 | else // Add to style queue |
| 1815 | wp_enqueue_style( $handle ); |
| 1816 | return; |
| 1817 | } |
| 1818 | |
| 1819 | echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . clean_url( wp_admin_css_uri( $file ) ) . "' type='text/css' />\n", $file ); |
| 1820 | if ( 'rtl' == get_bloginfo( 'text_direction' ) ) |
| 1821 | echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . clean_url( wp_admin_css_uri( "$file-rtl" ) ) . "' type='text/css' />\n", "$file-rtl" ); |
| 1822 | } |
| 1823 | |
| 1824 | /** |
| 1825 | * Enqueues the default ThickBox js and css. |
| 1826 | * |
| 1827 | * If any of the settings need to be changed, this can be done with another js |
| 1828 | * file similar to media-upload.js and theme-preview.js. That file should |
| 1829 | * require array('thickbox') to ensure it is loaded after. |
| 1830 | * |