HaruDoc::loadPNG

(PECL haru >= 0.0.1)

HaruDoc::loadPNG — Load PNG image and return HaruImage instance

object HaruDoc::loadPNG ( string $filename [, bool $deferred = false ] )

Loads a PNG image.

Libharu might be built without libpng support, in this case each call to this function would result in exception.

filename: The name of a PNG image file.
deferred: Do not load data immediately. You can set deferred parameter to TRUE for deferred data loading, in this case only size and color are loaded immediately.

Returns a HaruImage instance.

发生错误时抛出 HaruException 异常。