Re: Help With Copy Constructor.

From:
"JoeC" <enki034@yahoo.com>
Newsgroups:
comp.lang.c++
Date:
4 May 2006 11:12:17 -0700
Message-ID:
<1146766337.494189.227390@u72g2000cwu.googlegroups.com>
I tried what you sugested the program still crashes. What am I doing
wrong?

#include<windows.h>
#include<vector>
#include<iostream>
#include<string>

using namespace std;

#ifndef GRAPHIC_H
#define GRAPHIC_H

class graphic{
  int btmap;
  int lr,ud; //Diminsion (size) of the graphic
  vector<BYTE>gdata;
  HBITMAP hbitmap;
  BITMAP bitmap;
  HDC hdc, hdcmem;
  void copy(const BYTE in[]);
  BYTE get(int n)const {return gdata[n];}
  vector<BYTE>vGet() const {return gdata;}

public:
  graphic();
  graphic(const BYTE c[]);
  graphic(const graphic&);
  graphic& operator = (const graphic&);
  void SetGr(const BYTE c[]);
  void set(const BYTE c[]);
  void display(HWND,const int, const int);
};

#endif

#include<windows.h>
#include<fstream>
#include<string>
#include<vector>

#include "graphic.h"

using namespace std;

void graphic::copy(const BYTE in[]){
for(int lp=0; lp != 32; lp++)
  gdata.push_back(in[lp]);
}

void graphic::SetGr(const BYTE c[]){
//Changing the graphic
  copy(c);
  BITMAP bitmap = {0,ud,lr,2,1,1};
  bitmap.bmBits = &gdata[0];
  hbitmap = CreateBitmapIndirect(&bitmap);
}

graphic::graphic(const graphic& gr){
    ud = lr = 16;
  //memcpy( gdata, gr.gdata, 32 );
  gdata = gr.vGet();

  BITMAP bitmap = {0,ud,lr,2,1,1};
  bitmap.bmBits = &gdata[0];
  hbitmap = CreateBitmapIndirect(&bitmap);
}

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