Check out the below mentioned steps: 

#include <iostream> 

#include <GL/glew.h> 
 
#include <SFML/Window.hpp> 
 
const GLint WIDTH = 800, HEIGHT = 600; 

In the preceding lines of code, we've defined the GLint constant. The reason we're creating constant global variables is so that we can easily use these wherever we need them in the code, whether that's for initially creating the window or for manipulating some sort of shape.

int main( ) 
{ 
   sf::ContextSettings settings; 
   settings.depthBits = 24; settings.stencilBits = 8; 

In the preceding lines of code, we've defined some settings for our application and rendering window:

settings.majorVersion = 3; 
settings.minorVersion = 3; 
settings.attributeFlags = sf::ContextSettings::Core; 

Here, the majorVersion and minorVersion that we defined in the preceding lines of code are for setting the version of OpenGL. Here, we set the version as 3.3 by setting the minorVersion and the majorVersion to 3. If you wish to set up for any other version, you'll have to make changes accordingly. ThemajorVersionis to the left of the decimal point and theminorVersionis to the right of the decimal point. Then, we defined that we're using core modern OpenGL by settingContextSettingstoCore.

sf::Window window( sf::VideoMode( WIDTH, HEIGHT, 32 ), "OpenGL     SFML", sf::Style::Titlebar | sf::Style::Close, settings ); 

   glewExperimental = GL_TRUE; 
 
   if ( GLEW_OK != glewInit( ) ) 
   { 
      std::cout << "Failed to initialize GLEW" << std::endl; 
 
      return EXIT_FAILURE; 
   } 
 
   bool running = true; 

 
while ( running ) 
{ 
   sf::Event windowEvent; 
 
   while ( window.pollEvent( windowEvent ) ) 
   { 
      switch ( windowEvent.type ) 
      { 
      case sf::Event::Closed: 
         running = false; 
 
         break; 
      } 
  }  

In the preceding while loop, we are stating that if the window is closed, we are going to stop running our application and break out of our loop.

 
      glClearColor( 0.2f, 0.3f, 0.3f, 1.0f ); 
      glClear( GL_COLOR_BUFFER_BIT ); 
 
      // draw OpenGL 
 
      window.display( ); 
   } 
 
   window.close( ); 
 
   return EXIT_SUCCESS; 
  }
}   

Let's run our code and check whether there are any errors. If no errors pop up, we'll get a rendering window as output, similar to what we have witnessed in the previous sections.