The screen
_______________
|_______________|
| ___|__
| |...|..|
| |...|..| The surfaced being blitted
| ---|--
| |
|_______________|
SDL - Drawing outside an image?
Author
I'm wondering whether I am going out of bounds, when drawing outside of a surface? Basicly, I'm not bothering to cut my images as I draw them, to fit the screen, and am letting my blitting to overflow outside of the Surface I'm blitting to.
That will be fine. I think it just deletes the overhanging pixels (well it does for the screen).
Author
Okay thanks. I thought I'd have to rewrite the code to stop outside drawing. [smile] Glad I can avoid it, although it wouldn't be to annoying.
But the class deconstructers, do I need to delete it specifically, or does it 'deconstuct' at the program quit?
Example: Can I go like this, and let the program automaticly call my decunstruct function?
Or, is there some way I call the deconstuctor? I tried '~MyInstance()' but it gave me compile-time errors.
But the class deconstructers, do I need to delete it specifically, or does it 'deconstuct' at the program quit?
Example: Can I go like this, and let the program automaticly call my decunstruct function?
int main(){ MyClass MyInstance(...Constuctor parameters...); while(Not Quited) { ... Main Loop ... } return 0;}int main(){ MyClass MyInstance(...Constuctor parameters...); while(Not Quited) { ... Main Loop ... } delete MyInstance; return 0;}Or, is there some way I call the deconstuctor? I tried '~MyInstance()' but it gave me compile-time errors.
Constructors and destructors are purely a C++ issue and have no relation to SDL. A destructor for an object is called as soon as it goes out of scope. You only call 'delete' on a pointer that points to an object that you previously allocated with 'new'.
Author
Okay thanks. I know that its not SDL related, but I'm creating a SDL_Surface in the class, which ought to then have a SDL_FreeSurface in the destructer. (That's how I think it needs to be done, anyway)
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