SDL openGL by Zaka

#include <windows.h> #include "SDL/SDL.h" #include <gl\GL.h>    // Header File For The OpenGL32 Library #include <gl\GLU.h> // Header File For The GLu32 Library #include <gl\GLAux.h> #include "Game.h" #include "main.h" #define H_SCREEN    1280 #define V_SCREEN    1024 #define COLOR_DEPTH 32 SDL_Surface *screen; int flags = SDL_OPENGL | SDL_FULLSCREEN | SDL_DOUBLEBUF; int running = 1; int main( int argc, char* args[] ) {     //Start SDL     SDL_Init( SDL_INIT_EVERYTHING );     createScreen();     Init_Opengl();     GLDraw(); ////////////////////////SDL-LOOP//////////////////////////     SDL_Event event;          while(running) {                                 game();         while(SDL_PollEvent(&event)) {             switch(event.type){                 case SDL_KEYDOWN:                     if(event.key.keysym.sym==SDLK_ESCAPE)                     running = 0;                     break;                 case SDL_KEYUP:                     break;             }         }     } //////////////////////////////////////////////////////////     SDL_Quit();          return 0;     } void createScreen() {     SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );     SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );     SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );     SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 32 );     SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );     screen = SDL_SetVideoMode(H_SCREEN, V_SCREEN, COLOR_DEPTH, flags );     if ( screen == NULL ) {         fprintf(stderr, "Not possibile to use resolution 1280 X 1024: %s\n",                  SDL_GetError());         exit(1);     } } void Init_Opengl()  // all initialization parameters... {     glMatrixMode(GL_PROJECTION | GL_MODELVIEW);     glLoadIdentity();     glClearColor ( 0.0, 0.0, 0.0, 0.0 );     glClear ( GL_COLOR_BUFFER_BIT );     glDepthFunc(GL_LEQUAL);     glShadeModel(GL_SMOOTH);     glDisable(GL_CULL_FACE);     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);     glOrtho ( -6.25, 6.25, -5.0, 5.0, -1.0, 10.0 ); } void GLDraw() {     glBegin ( GL_POLYGON );         glColor3f (0.5f , 0.2f , 0.7f);         glVertex3f (-0.2, -0.2, 0.0);         glVertex3f (0.2, -0.2, 0.0);         glVertex3f (0.2, 0.2, 0.0);         glVertex3f (-0.2, 0.2, 0.0);     glEnd();     SDL_GL_SwapBuffers();     glFlush(); }