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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.
| Line | Code |
|---|---|
| 569 | /** |
| 570 | * Filters the current image being loaded for editing. |
| 571 | * |
| 572 | * @since 2.9.0 |
| 573 | * |
| 574 | * @param resource $image Current image. |
| 575 | * @param string $attachment_id Attachment ID. |
| 576 | * @param string $size Image size. |
| 577 | */ |
| 578 | $image = apply_filters( 'load_image_to_edit', $image, $attachment_id, $size ); |
| 579 | if ( function_exists('imagealphablending') && function_exists('imagesavealpha') ) { |
| 580 | imagealphablending($image, false); |
| 581 | imagesavealpha($image, true); |
| 582 | } |
| 583 | } |
| 584 | return $image; |
| 585 | } |
| 586 | |
| 587 | /** |