Drawing Operations Not Working

Drawing Operations Not Working

AlejandroRM

Member #21,513

October 2021

Hello! I'm a Allegro newbie and not enough experienced C++ programmer having a problem. I want to develop a spaceships videogame but when I try to do things like loading images outside the main.cpp, everything "works" but when I try to draw them, nothing happens or the program crashes and exits with code 1.

DanielH

Member #934

January 2001

1st rule is to post some code. There are numerous reasons this could happen.

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Chris Katko

Member #1,881

January 2002

I'd bet you:

1) you're not loading files after setting up allegro and creating a display.

2) you're not checking if bitmaps are NULL after al_load_bitmap which means it's likely failing because you have the path wrong.

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Edgar Reynaldo

Major Reynaldo

May 2007

Poured gasoline on engine. Still not working. Gonna have a cigarette.

Checklist :
1) Do you know what 'extern' keyword does?

2) Are you making copies (shallow) copies of objects?

3) What do you mean not working. Not compiling? Not linking? Not running?

4) Have you checked return values of functions that could fail?

5) As they said, did you create your bitmaps after calling al_init?

6) What was the return value of al_load_bitmap?

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