if ((fichero=fopen("tareas.txt","r+t")) ==NULL)What is r+t? You want that to be "w+", I think.

If the file can't be opened, then your program tries to use allegro_message(), but allegro is not initialised yet, so I guess it crash. Move allegro_init(); to the top, and check again.

I have "tareas.txt" in the same folder where i have my project so there must be no problem, isn't it? correct me if i'm wrong. it could be the problem. I know that the allegro_message() is not in its place. At first i put it after allegro_init() but even then it didnt opened the file, nor executed none of the 2 allegro_message(). And that is the real problem i have THE PROGRAM DON'T EXECUTE THE "fopen" AND BOTH OF THE "allegro_message".
If somebody have some idea of this plaese help.

Put the executable and text file in the same directory.

Replace allegro_message() with:

printf("\ncan't open file\n");

And run your program from command line window.

my executable is in a folder on my desktop but i don't understand what you wanna say with from where i call it from. i just compile my program with dev-c++. is that what you are asking for?

i am not really sure of what you are saying. Would you tell me the extensión of the files you are talking about. I have a lot of files in my folder (".res","makefile.win",".layout",".exe.manifest",".rc", but some of them buy stay there from other compilations of my code).

You have your files in a folder, say, "C:\MyProject". When you compile with Dev-C++, it may create a folder and put the object and executable files there. So, it is possible Dev-C++ puts the executable file in "C:\MyProject\Debug". If you have your text file in "C:\MyProject", the executable won't read it. So, get absolutely sure the executable you are running is in the same directory as your text file.

Windows is a bit strange and may search for your files anywhere.

(Edited: Check this link for a proper way of finding the path to your resources).

Put into this folder file tareas.txt.

Open this folder and

if you have win98:

- click start button
- click run command
- in opened "run window" type:

command

- in black window type name of your executable file

if you have winXP

- create empty text file with name "cmdline.cmd"
- in this file type:

cmd

- save and close this file
- double click on this file in folder window
- in black window type name of your executable file

Thank you !!!

But seriously I had windows XP and if I just type "command" in "run" window, I always landed on Desktop (or MyDocuments, I don't remember exactly) (even if I opened another folder before cmd).
Only method with *.cmd files worked.
Ask Bill: why?

i just tried your way to avoid problems with the location of the file, ReyBrujo, but i still have problems. when i try to compile it i get the "permission denied" error.
And for the first thing you said about that dev-c++ create a debug folder, its not true in my case. i have no debug folder instead i have a lot of files in the same folder and it is in this folder where i have the text file, object file and so on.

Press ctrl+alt+delete and in the window that pops up click the processes tab, find your exe and kill it. Then try compiling again.

What do you have in your directory? Post the names of the files.