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This is my write-up on my working with SDL, from the SDL book Focus on SDL.

The first program in the book just checks to see if SDL initialized properly:

fosdl1_1.cpp

  1 #include "SDL/SDL.h"
  2 #include <stdio.h>
  3 
  4 int main(int argc, char* argv[])
  5 {
  6     if (SDL_Init(SDL_INIT_VIDEO) == -1)
  7     {
  8         fprintf(stderr, "Could not initialize SDL!\n");
  9     }
 10     else
 11     {
 12         fprintf(stdout, "SDL initialized properly!\n");
 13         SDL_Quit();
 14     }
 15     return 0;
 16 }

The next program is a small SDL-based application, a screen pops up when it is run:

fosdl1_2.cpp

  1 #include "SDL/SDL.h"
  2 #include <stdio.h>
  3 #include <stdlib.h>
  4 
  5 SDL_Surface* g_pMainSurface = NULL;
  6 SDL_Event g_Event;
  7 
  8 int main(int argc, char* argv[])
  9 {
 10     if (SDL_Init(SDL_INIT_VIDEO) == -1)
 11     {
 12         fprintf(stderr, "Could not initialize SDL!\n");
 13         exit(1);
 14     }
 15     else
 16     {
 17         fprintf(stdout, "SDL initialized properly!\n");
 18         atexit(SDL_Quit);
 19     }
 20 
 21     g_pMainSurface = SDL_SetVideoMode( 640,480, 0, SDL_ANYFORMAT);
 22 
 23     if(!g_pMainSurface)
 24     {
 25         fprintf(stderr, "Could not create main surface!\n");
 26         exit(1);
 27     }
 28 
 29     for(;;)
 30     {
 31         if(SDL_WaitEvent(&g_Event) == 0)
 32         {
 33             fprintf(stderr, "Error while waiting for an event!\n");
 34             exit(1);
 35         }
 36 
 37         //check the type of event
 38         if(g_Event.type == SDL_QUIT)
 39         {
 40             fprintf(stdout, "Quit event has occured.\n");
 41             break;
 42         }
 43     }
 44 
 45     fprintf(stdout, "Terminating program normally.\n");
 46 
 47     return(0);
 48 }

But wait! There's more… Coming Soon!