array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'gmagick.getimageindex.php', 1 => 'Gmagick::getimageindex', 2 => 'Gets the index of the current active image', ), 'up' => array ( 0 => 'class.gmagick.php', 1 => 'Gmagick', ), 'prev' => array ( 0 => 'gmagick.getimagehistogram.php', 1 => 'Gmagick::getimagehistogram', ), 'next' => array ( 0 => 'gmagick.getimageinterlacescheme.php', 1 => 'Gmagick::getimageinterlacescheme', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/gmagick/gmagick/getimageindex.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

Gmagick::getimageindex

(PECL gmagick >= Unknown)

Gmagick::getimageindex — Gets the index of the current active image

说明

public Gmagick::getimageindex(): int

Returns the index of the current active image within the Gmagick object.

参数

此函数没有参数。

返回值

Index of current active image.

错误／异常

错误时抛出 GmagickException。