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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 |
|---|---|
| 1034 | * Filters the current image being loaded for editing. |
| 1035 | * |
| 1036 | * @since 2.9.0 |
| 1037 | * |
| 1038 | * @param resource|GdImage $image Current image. |
| 1039 | * @param int $attachment_id Attachment ID. |
| 1040 | * @param string|int[] $size Requested image size. Can be any registered image size name, or |
| 1041 | * an array of width and height values in pixels (in that order). |
| 1042 | */ |
| 1043 | $image = apply_filters( 'load_image_to_edit', $image, $attachment_id, $size ); |
| 1044 | |
| 1045 | if ( function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) { |
| 1046 | imagealphablending( $image, false ); |
| 1047 | imagesavealpha( $image, true ); |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | return $image; |
| 1052 | } |