(PHP 4 >= 4.3.0, PHP 5 < 5.3.0, PECL fdf SVN)
fdf_set_target_frame — Set target frame for form display
$fdf_document, string $frame_name): boolSets the target frame to display a result PDF defined with fdf_save_file() in.
fdf_documentThe FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
frame_nameThe frame name, as a string.
成功時(shí)返回 true， 或者在失敗時(shí)返回 false。