steghide  0.5.1
CvrStgObject.h
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1 /*
2  * steghide 0.5.1 - a steganography program
3  * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  *
19  */
20 
21 #ifndef SH_CVRSTGOBJECT_H
22 #define SH_CVRSTGOBJECT_H
23 
24 #include "common.h"
25 
26 class SampleValue ;
27 
40 class CvrStgObject {
41  public:
45  virtual unsigned long getNumSamples (void) const = 0 ;
46 
55  virtual SampleValue* getSampleValue (const SamplePos pos) const = 0 ;
56 
64  virtual void replaceSample (const SamplePos pos, const SampleValue* s) = 0 ;
65 } ;
66 
67 #endif //ndef SH_CVRSTGOBJECT_H
an object that can hold embedded data
Definition: CvrStgObject.h:40
UWORD32 SamplePos
Definition: common.h:67
the value of a sample in a CvrStgFile
Definition: SampleValue.h:61
virtual SampleValue * getSampleValue(const SamplePos pos) const =0
virtual unsigned long getNumSamples(void) const =0
virtual void replaceSample(const SamplePos pos, const SampleValue *s)=0