//Файл Bmp.h
#pragma once 

#include <Windows.h>
#include <iostream>
#include <fstream>

using namespace std;

extern PBYTE      BufferColor;
extern PRGBTRIPLE rgb;

void Initialize( const char *fname );
void Dispose();
void Display();
size_t GetW();
size_t GetH();

//Файл Bmp.сpp

#include "Bmp.h"

static BITMAPFILEHEADER BFHeader;
static BITMAPINFOHEADER BIHeader;

PBYTE BufferColor = nullptr;

PRGBTRIPLE rgb = nullptr;

void Initialize( const char *fname )
{
	Dispose();

		ifstream in(fname, ios::in | ios::binary );

			try
			{
				if( in.fail() )
					throw "Ошибка открытия файла";

				in.read( (char*)&BFHeader, sizeof( BITMAPFILEHEADER )); 

				if( in.fail() )
					throw "Ошибка чтения файла";

				if( BFHeader.bfType != 0x4d42 )
					throw "Ошибка неверный формат файла";

				in.read( (char*)&BIHeader, sizeof( BITMAPINFOHEADER ));

				size_t SizeOfBufferColor = BIHeader.biHeight * BIHeader.biWidth;

				rgb = new RGBTRIPLE[SizeOfBufferColor]; 

				//BufferColor = new BYTE[ SizeOfBufferColor ];

				in.seekg( BFHeader.bfOffBits );

				in.read( (char*)rgb, SizeOfBufferColor*3 );

				if( in.fail() )
					throw "Ошибка чтения блока данных";
			}

			catch( const char *msg )
			{
				cout<<msg<<endl;
			}
			catch(...) {
				cerr<<"unknown error";
			}

		in.close();
}

void Dispose()
{
	memset( (LPVOID)&BFHeader, 0, sizeof( BITMAPFILEHEADER ) );
	memset( (LPVOID)&BIHeader, 0, sizeof( BITMAPINFOHEADER ) );

	if(BufferColor) {
		delete BufferColor;
		BufferColor = nullptr;
	}

	if(rgb) {
		delete rgb;
		rgb = nullptr;
	}	
}

size_t GetW() {
	return BIHeader.biWidth;
}

size_t GetH() {
	return BIHeader.biHeight;
}

void Display()
{
	cout<<"bfSize: "<<BFHeader.bfSize
		<<endl
		<<"bfType: "<<BFHeader.bfType
		<<endl
		<<"bfOffBits: "<<BFHeader.bfOffBits
		<<endl
		<<"biBitCount: "<<BIHeader.biBitCount
		<<endl
		<<"biClrImportant: "<<BIHeader.biClrImportant
		<<endl
		<<"biClrUsed: "<<BIHeader.biClrUsed
		<<endl
		<<"biCompression: "<<BIHeader.biCompression
		<<endl
		<<"biHeight: "<<BIHeader.biHeight
		<<endl
		<<"biWidth: "<<BIHeader.biWidth
		<<endl
		<<"biSize: "<<BIHeader.biSize
		<<endl;

}

#include <iostream>
#include "Bmp.h"

	using namespace std;

int main( void )
{

	HWND hConsole = NULL;
	HDC  hDc      = NULL;

	Initialize( "C:\\atlas.bmp" );
	Display();

	hConsole = GetConsoleWindow();

hDc = GetDC( hConsole );

	for( int i = 0; i < GetW(); i++ )
	{
		for( int j = 0; j < GetH(); j++ )
		{
			SetPixel(hDc, j, i, RGB( rgb[i+j].rgbtRed, rgb[i+j].rgbtGreen, rgb[i+j].rgbtBlue ));
		}
	}


ReleaseDC( hConsole, hDc );

Dispose();

	return cin.get();
}