PoDoFo::PdfInputStream Class Reference

#include <PdfInputStream.h>

Inheritance diagram for PoDoFo::PdfInputStream:

Public Member Functions
virtual pdf_long	Read (char *pBuffer, pdf_long lLen, pdf_long *pTotalLeft=0)=0

Detailed Description

An interface for reading blocks of data from an a data source.

Member Function Documentation

Read()

virtual pdf_long PoDoFo::PdfInputStream::Read ( char *  pBuffer, pdf_long  lLen, pdf_long *  pTotalLeft = 0  )

pure virtual

Read data from the input stream

Parameters

pBuffer	the data will be stored into this buffer
lLen	the size of the buffer and number of bytes that will be read
pTotalLeft	total bytes left (needed for AES IV and padding)

Returns

the number of bytes read, -1 if an error occurred and zero if no more bytes are available for reading.

Implemented in PoDoFo::PdfFileInputStream, PoDoFo::PdfDeviceInputStream, and PoDoFo::PdfMemoryInputStream.