HaruDoc::loadPNG()
(PECL haru >= 0.0.1)
Load PNG image and return HaruImage instance
说明
HaruDoc::loadPNG(string $filename[,bool $deferred= FALSE
]): object
Loads a PNG image.
Libharu might be built without libpng support, in this case each call to this function would result in exception.
参数
- $filename
The name of a PNG image file.
- $deferred
Do not load data immediately. You can set$deferredparameter to
TRUE
for deferred data loading, in this case only size and color are loaded immediately.
返回值
Returns a HaruImage instance.
错误/异常
发生错误时抛出HaruException异常。
参见
- HaruDoc::loadJPEG() Load a JPEG image
- HaruDoc::loadRAW() Load a RAW image