Plot a Sinewave to the Console

// plot a sinewave to the console window (cmd window)
// link with GDI32.lib or using Dev-C++ link libgdi32.a via
// Project>>Project Options>>Parameters>>Add Lib>>libgdi32.a
// this is a Windows Console Application   vegaseat  06mar2005

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

int main(void)
{
  int x, y;
  COLORREF yellow = RGB(255,255,0);
  COLORREF lightblue = RGB(173,216,230);
  
  // make sure the names match
  SetConsoleTitle("ConGraphics");
  HWND hWnd = FindWindow(NULL, "ConGraphics");

  HDC hDC = GetDC(hWnd);
  
  // draw a yellow sine curve
  for(x = 0; x < 700; x++)
  {
    // center at y = 200 pixels
    y = (int)(sin(x/100.0)*100 + 200);
    SetPixel(hDC, x, y, yellow);
  }
    
  // draw center line
  for(x = 0; x < 700; x++)
  {
    SetPixel(hDC, x, 200, lightblue);   
  }
  
  ReleaseDC(hWnd, hDC);
  DeleteDC(hDC);

  getchar();  // wait
  return 0;
}