Hey everyone I am struggling with Opengl and cannot seem to figure out this prob

Question

Hey everyone I am struggling with Opengl and cannot seem to figure out this problem.

Here is the problem definition:

Create a program that will display a sin curve when the left mouse button is clicked on and a cos curve when the right mouse button is clicked on. They should be different colors and can be displayed at the same time.

Here is what I have so far:

#include "F:OpenGL_tutorials
_Setting_OpenGL
_Setting_OpenGLDependenciesglewglew.h"
#include "F:OpenGL_tutorials
_Setting_OpenGL
_Setting_OpenGLDependenciesreeglutreeglut.h"
#include <math.h>
//#include "F:OpenGL_tutorials
_Setting_OpenGLDebugc120.PDB"
//#include "F:OpenGL_tutorials
_Setting_OpenGLDebugc120.idb"

#include <iostream>
typedef struct _Vector
{
   double x, y, z;
}
Vector
;
const int SCREEN_WIDTH = 800;
const int SCREEN_HEIGHT = 600;

Vector dis;
double speed = 10;
Vector pos;
double radian;
Vector dir;

#define PI 3.14159265
#define SIZE 2000

void drawline(float x1, float y1, float x2, float y2);
void sinewave();

int main(int argc, char ** argv)
{
   glutInit(&argc, argv);
   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
   glutInitWindowSize(400, 400);
   glutInitWindowPosition(200, 200);

   glutCreateWindow(" sinusoidal wave ");
   glutDisplayFunc(sinewave);
   glutMainLoop();
  
}

void sinewave()
{
   float x1, x2, y1, y2;
   for (int i = 0; i<SIZE; i++)
   {
       x1 = (float)i / SIZE;
       x2 = ((float)i +1.0) / SIZE;
       y1 = sin(x1 * 2 * PI);
       y2 = sin(x2 * 2 * PI);
       drawline(x1, y1, x2, y2);
       glutSwapBuffers();
   }

}
Vector mouseCoords;
void mouse(int btn, int state, int x, int y)
{
   mouseCoords.x = x - SCREEN_WIDTH / 2;
   mouseCoords.y = -y + SCREEN_HEIGHT / 2;

}

void move()
{
   dis.x = mouseCoords.x - pos.x;
   dis.y = mouseCoords.y - pos.y;

   if (sqrt(dis.y*dis.y + dis.x*dis.x) < speed)
   {
       pos.x = mouseCoords.x;
       pos.y = mouseCoords.y;

   }
   else

   {
      
       pos.x += cos(radian)*speed;
       pos.y += sin(radian)*speed;
      

   }
}

void drawline(float x1, float y1, float x2, float y2)
{
   glBegin(GL_LINE_STRIP);
   glColor3f(1.0, 0, 0);
   glVertex2f(x1,y1);
   glVertex2f(x2, y2);
  
   //glVertex2f(pos.x, pos.y); Was not able to get mouse control to compile
   glEnd();
}

Here's what my ouput is:

Explanation / Answer

I dint see your code having #include <gl/glut.h> code. If you do not have GLUT installed on your machine it doesnt works. It seems to be you are fetching from folder path. Please include glClearColor ( 0.0 , 0.0 , 0.0 , 1.0 ); to clear with Black background . Regarding mouse controls use the following :

MousePosition.X
MousePosition.Y

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