bitmap in allegro

why doesnt this show
i found it from a tutorial in the net


BITMAP *my_pic; //Declare a BITMAP called my_pic

my_pic = load_bitmap("picture.bmp", NULL); // Load our picture

i have a bmp picture that i have named picture.bmp

by the way how will the program find "picture.bmp"

here is the enyire code:



#include <allegro.h>
int main(int argc, char *argv[])
{
allegro_init();
install_keyboard();
set_color_depth(16);
set_gfx_mode(GFX_AUTODETECT, 640,480,0,0);
BITMAP *my_pic;
my_pic = load_bitmap("picture.bmp", NULL);
acquire_screen();
blit(my_pic, screen, 0,0,0,0,50,50);
blit(my_pic, screen, 50,50,100,100,150,150);
release_screen();
readkey();
destroy_bitmap(my_pic);
return(0);
}
END_OF_MAIN();

how will the program find "picture.bmp"

If no path is specified then the program looks for it in the programs current directory (directory your program is located within). If you placed it in a specific place you may enter the path. Say I put mypic.bmp in the C drive under the pics directory:

BITMAP *pic
PALLETE *pal;
pic = load_bitmap("C:\\pics\\mypic.bmp", pal);

Will load it up.

-Justin

I know where you got that code from because i learned from that site be 4. to load your bitmap you have to specify the location or put the bitmap in the location where the program is being runed from that way you dont have to specify any locations.

I was wondering why do you have both of these in your code..
blit(my_pic, screen, 0,0,0,0,50,50);
blit(my_pic, screen, 50,50,100,100,150,150);
???

He is placing the bitmap in two places.

don't you have to specify a palette too? try putting

default_palette

in place of NULL.