PNG Extract to String ?

[MaRZoCHi]

Hello, I have a problem on Pys60.

I use screenshot function of graphics module.But I won't save image,see or save as string(code)
I want same script on my example.
Can this be? Please help

>>> img = graphics.screenshot()
>>> data = img.data_save("jpg")
>>> print data
\211\PNG....

Best regards...

[MaRZoCHi]

I say, PNG Unpack to Code.My firend want do a screencapturer.