C++ Graphics Help - Drawing a line

[Firecore]

Hello there.
This a part of a program i am trying to make. I am trying to learn how to use graphics in a console C++ App.
I am using the Visual C++ 6 and whenever I try to run this code, I can never see any lines.

Code :

//This is my graphics experiment

#include <cstdio>
#include <cmath>
#include <windows.h>
#include <iostream>

using namespace std;


int main(void)
{
	//Colour Declarations

	COLORREF white = RGB(255,255,255);// White background
	COLORREF black = RGB(0,0,0);
	COLORREF lightblue = RGB(173,216,230);
	int x = 0; // X coordinate
	int y = 0; // Y coordinate
	
	int r, g, b; // RGB values
	
	SetConsoleTitle("Title Goes Here");
	HWND hWnd = FindWindow(NULL, "Title Goes Here");

	HDC hDC = GetDC(hWnd);

	SetBkColor(hDC, white);
	SetTextColor(hDC, black);

	while (x != 50)
	{
		SetPixel(hDC, x, y, lightblue);
		x = x + 1;

	}

	ReleaseDC(hWnd, hDC);
        DeleteDC(hDC);

	return 0;
}

Basically, I am trying to change the console background to white and i am trying to draw a black line on it.

Can people please help me by helping me make this work?

When I run it, I cant see any graphics.

Please Help.

[Banfa]

Hello there.
This a part of a program i am trying to make. I am trying to learn how to use graphics in a console C++ App.
I am using the Visual C++ 6 and whenever I try to run this code, I can never see any lines.

Code :

//This is my graphics experiment

#include <cstdio>
#include <cmath>
#include <windows.h>
#include <iostream>

using namespace std;


int main(void)
{
	//Colour Declarations

	COLORREF white = RGB(255,255,255);// White background
	COLORREF black = RGB(0,0,0);
	COLORREF lightblue = RGB(173,216,230);
	int x = 0; // X coordinate
	int y = 0; // Y coordinate
	
	int r, g, b; // RGB values
	
	SetConsoleTitle("Title Goes Here");
	HWND hWnd = FindWindow(NULL, "Title Goes Here");

	HDC hDC = GetDC(hWnd);

	SetBkColor(hDC, white);
	SetTextColor(hDC, black);

	while (x != 50)
	{
		SetPixel(hDC, x, y, lightblue);
		x = x + 1;

	}

	ReleaseDC(hWnd, hDC);
        DeleteDC(hDC);

	return 0;
}

Basically, I am trying to change the console background to white and i am trying to draw a black line on it.

Can people please help me by helping me make this work?

When I run it, I cant see any graphics.

Please Help.

Trying to draw grpahics on the console is not going to work, the console does not support raster graphics because it is a text interface. If you called GetDeviceCaps on you DC I suspect you would find that it supports very little.

You can set the text foreground and background colours of the console by calling cmd.exe with the /T switch when you start your console.

From a command prompt run these 2 commands for more information

cmd /?
color /?

If you need to draw raster graphics (pixels and lines) you are going to need a window.

[Firecore]

If you need to draw raster graphics (pixels and lines) you are going to need a window.

How do i do that? Can you please tell me?

[arunmib]

If you need to draw something in windows you need a bitmap area (as far as my understanding goes, correct me if I am wrong). Since console is only for text, you need to create a Bitmap and associate it with the console and then you can do the 'SetPixel' kind of thing.
Take a look at the following APIs in the MSDN website, they might be of use to
you,

CreateCompatibl eDC, CreateCompatibl eBitmap, SelectObject and then your SetPixel.

The first two APIs mentioned will mostly help you avoid much details about the bitmap area. But if you wish to get into the details, refer to their counterparts in the "see also" section below.

I hope my post is of some help. If I am wrong anywhere, correct me.

[Firecore]

Thank You for your help.
I will check the stuff tonight.

[Banfa]

How do i do that? Can you please tell me?

Start by creating a WIN32 application not a console application has they have different entry points.