title: Error LNK2019 unresolved external symbol _WinMain@16 referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ)
body: <p>This is my script
  i have no idea to solve this error
  Please help me 
  Thank you so much</p>
  
  <pre><code>float angle = 15;
  float x, y, z;               // for polygon rotate 
  
  void display()
  {
  
      glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); // clear screen and depth buffer
      glLoadIdentity();
  
      glPushMatrix();
  
      glColor3f(1.0, 0.0, 0.0);
  
      glBegin(GL_POLYGON);
  
  
      glVertex2f(160.0, 360.0);
      glVertex2f(300.0, 360.0);
      glVertex2f(160.0, 480.0);
      glVertex2f(300.0, 480.0);
  
      glPushMatrix();
  
      glColor3f(0.0, 0.0, 0.0);
      glVertex2f(580.0, 200.0);
      glVertex2f(640.0, 200.0);
      glVertex2f(580.0, 480.0);
      glVertex2f(640.0, 480.0);
  
      glRotatef(angle, -1.0f, 0.0, 0.0);
  
      angle += 15.0f;
  
  
  
  
  
  
      glEnd();
  
  
  
  
      glutSwapBuffers(); // dounle buffering
  
  }
  LRESULT CALLBACK MainWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
  {
      switch (uMsg)
      {
      case WM_LBUTTONDOWN:
      {
  
  
  
      }break;
  
      case WM_DESTROY: {
  
  
          PostQuitMessage(0);
  
      }break;
  
  
      default:break;
      }
      return 0;
  }
  
  
  
  int main(int argc, char** argv)
  {
      glutInit(&amp;argc, argv); // Initialize GLUT
  
      glutInitDisplayMode(GLUT_DOUBLE);// Set up some memory buffers for our display
  
  
      glutInitWindowSize(640, 400);
      glutInitWindowPosition(100, 20);
      glutCreateWindow("My GLUT GAME");
      glutDisplayFunc(display);
      //glutKeyboardFunc();
  
  
      glutMainLoop();
      return 0;
  }
  </code></pre>