#include<iostream>
#include<fstream>

using namespace std;

void displayFileHeader(ifstream& fin, ofstream& fout)
{
	char bfType[3];
	unsigned int bfSize;
	unsigned short bfReserved1;
	unsigned short bfReserved2;
	unsigned int bfOffBits;

	fin.read(bfType, 2); // this should read BM
	bfType[2] = '\0';
	fin.read((char*)&bfSize,4);
	fin.seekg(4,ios::cur);
	fin.read((char*)&bfOffBits,4);

	fout.write(bfType, 2); // this should read BM
	fout.write((char*)&bfSize,4);
	fout.write((char*)&bfSize,4);
	fout.write((char*)&bfOffBits,4);
}

void displayInfoHeader(ifstream& fin, ofstream& fout)
{
	unsigned int biSize;
	unsigned int biWidth;
	unsigned int biHeight;
	unsigned short biPlanes;
	unsigned short biBitCount;
	unsigned int biCompression;
	unsigned int biSizeImage;
	unsigned int biXPelsPerMeter;
	unsigned int biYPelsPerMeter;
	unsigned int biClrUsed;
	unsigned int biClrImportant;

	fin.read((char*)&biSize,4);
	fin.read((char*)&biWidth,4);
	fin.read((char*)&biHeight,4);
	fin.read((char*)&biPlanes,2);
	fin.read((char*)&biBitCount,2);
	fin.read((char*)&biCompression,4);
	fin.read((char*)&biSizeImage,4);
	fin.read((char*)&biXPelsPerMeter,4);
	fin.read((char*)&biYPelsPerMeter,4);
	fin.read((char*)&biClrUsed,4);
	fin.read((char*)&biClrImportant,4);

	fout.write((char*)&biSize,4);
	fout.write((char*)&biWidth,4);
	fout.write((char*)&biHeight,4);
	fout.write((char*)&biPlanes,2);
	fout.write((char*)&biBitCount,2);
	fout.write((char*)&biCompression,4);
	fout.write((char*)&biSizeImage,4);
	fout.write((char*)&biXPelsPerMeter,4);
	fout.write((char*)&biYPelsPerMeter,4);
	fout.write((char*)&biClrUsed,4);
	fout.write((char*)&biClrImportant,4);
}

void main()
{
	//p-pointer is the put pointer for file handles of type ofstream
	//g-pointer is the get pointer for file handles of type ifstream
	ifstream fin("test.bmp",ios::binary);
	ofstream fout("test2.bmp",ios::binary);

	displayFileHeader(fin, fout);
	displayInfoHeader(fin,fout);

	//fout.seekp(54);

	unsigned char red = 255;
	unsigned char blue = 0;
	unsigned char green = 0;
	
	for(int row = 0; row < 108; row++)
	{
		for(int column = 0;column < 176; column++)
		{
			fout.write((char*)&blue, 1);
			fout.write((char*)&green, 1);
			fout.write((char*)&red, 1);
		}
		blue = (blue == 0)?255:0;
		green = (green == 0)?255:0;
	}

	fin.close();
	fout.close();
}




#include<iostream>
#include<fstream>

using namespace std;

void main()
{
	ofstream fout("test.dat",ios::binary);

	char c = 10;
	for( char i = 0; i < 100; i++)
	{
		fout.write((char*)&c,1);
	}

	fout.close();
}