I'm making a map editor and will have two options, one to edit an existing map and another to create a new map.
Assuming that the person choose "new map", he'll have to type the name of the map, as I do so that it can enter text on the screen?

A4 or A5 ?

oh sorry, A5 friend!

Here's some code I wrote for the same purpose :-

You need to pass

1) an ALLEGRO_DISPLAY * - one you've created with al_create_display of course.

2) an ALLEGRO_EVENT_QUEUE * - one you've attached the keyboard and display to .

3) a char * that points to some memory - this where the filename gets stored.

so have something like :

char filename[MAX_LENGTH_FOR_FILENAME_STRING] = ""; .. in the caller

4) as you can see - there's two fonts but you could adapt it to be simpler and use just one font - in my example the fonts are true type fonts.

The WHITE and DARK_RED etc... are

#define WHITE al_map_rgb(255, 255, 255)

Loose the #include <feature_representations.h> line but make sure you replace all the symbolic constants with your own - ie MAX_LENGTH_FOR_FRD_STRING, QUIT_DUE_TO_PROBLEM, etc....

Perhaps you make use of this I know it's a bit an effort just to get a filename but it works here...

If you want to use it, let me know if you have any problems..

/* EDIT - sorry it's a lazyish post but I've had a long day and I've started a glass of wine */

/* EDIT 2 */

Hope I haven't put you off programming

edit

I'm trying to put this code inside of a void, I did some change... That do not worked for now but compile without errors, I think is a good signal! Thanks

just let me know if you're stuck

Well, I do not get it to work yet, but I'm packing some things to see. =)

Since it is not working, post your latest code please.

Uma vez que não está funcionando, poste seu código mais recente, por favor.

edit 1: I changed the MAX_LENGTH_FOR_FRD_STRING, worked with bug

http://oi56.tinypic.com/2vljkvb.jpg

int get_ascii_value(int keycode, int shift_key) {
   if(keycode >= ALLEGRO_KEY_A && keycode <= ALLEGRO_KEY_Z) {
      printf(" returning %d.\n", (keycode - ALLEGRO_KEY_A + 97) - shift_key ? 32 : 0);
      return (keycode - ALLEGRO_KEY_A + 97) - (shift_key ? 32 : 0);
   }
   if(keycode >= ALLEGRO_KEY_0 && keycode <= ALLEGRO_KEY_9) {
      return keycode - ALLEGRO_KEY_0 + 48;
   }
   if(keycode == ALLEGRO_KEY_MINUS) {
      if(shift_key) return '_';
      else
      return '-';
   }
}

Always compile with the -Wall flag with gcc/MinGW. It would have warned you that get_ascii_value is not returning a value when it should have. You should return -1 after the third 'if' statement to indicate it was not a valid character.

Sempre compile com o "-Wall" sinalizador com gcc / MinGW. Teria avisei que get_ascii_value não está retornando um valor, quando deveria ter. Você deve retornar -1, após o terceiro 'if ' para indicar que ele não era um caractere válido.

void test() {
   int get_filename_screen;
   bool quit;
   char *filename;
   ALLEGRO_EVENT ev;
   int current_character = 0;
   int MAX_LENGTH_FOR_FRD_STRING;
   int key;
   int shift_key_pressed;
   int ascii_value;

You didn't allocate memory for filename. You didn't initialize MAX_LENGTH_FOR_FRD_STRING either.

Você não alocar memória para o filename. Você não quer inicializar MAX_LENGTH_FOR_FRD_STRING.

   char* filename = 0;
   int MAX_LENGTH_FOR_FRD_STRING = 128;

   filename = (char*)malloc((MAX_LENGTH_FOR_FRD_STRING + 1)*sizeof(char));
   if (!filename) {return ERROR;}
   memset(filename , '\0' , MAX_LENGTH_FOR_FRD_STRING + 1);

Thanks a lot!