Memory Allocation

[Panphobia]

crap yea I was thinking of setting an int array to null, because that would be 0 I was not thinking, sorry about that.

[wtd]

I am getting the feeling POINT may be better implemented as a class..

[Cancer Sol]

wtd @ 4/7/2013, 12:10 am wrote:

I am getting the feeling POINT may be better implemented as a class..

I don't even know what a Class is xD

Actually, I know what the problem is for my program. It isn't about new and/or delete,
it's just a function I'm not using properly.

Basically, this is what I did:

c++:

int coord=0; POINT *cursorpos = new POINT [20]; GetCursorPos(*cursorpos[coord]); coord++;

Which there's something wrong, like I can't use an array within GetCursorPos.
It works when I don't use an array and inside GetCursorPos, I would do this:

c++:

GetCursorPos(&Example);

But I want to store multiple coordinates. How do I do that? I've tried experimenting with it for so long yesterday.

[DemonWasp]

If you want to pass a reference to GetCursorPos (which should be declared as follows):

code:

void GetCursorPos ( POINT &p )

Then you can pass an array element by this:

code:

GetCursorPos ( cursorpos[coord] );

The code you posted tries to dereference 'cursorpos' twice (*cursorpos[coord]), but it only has one level of indirection (basically, one * in its declaration).

If you were passing by pointer rather than reference, then GetCursorPos would look like:

code:

void GetCursorPos ( POINT *p )

And you would pass an array element by this:

code:

// This says "get me the address of the [coord] element of the 'cursorpos' array" GetCursorPos ( &(cursorpos[coord]) );

or

code:

// This says "get me a pointer to (coord) elements past (cursorpos)." GetCursorPos ( cursorpos + coord );

[Cancer Sol]

Thanks, D.

The function GetCursorPos() is in the windows.h header file, so I'm going to have to make my own function for that.
I thought the reason why it wouldn't work was because I was using an array, not because I'm using a pointer xD
I wish references knew what NULL is :/

[wtd]

Oh sweet merciful Jebus! The Windows API and you're new enough to programming that you don't know what a class is? Die with dignity.

[Cancer Sol]

wtd @ 4/7/2013, 11:40 pm wrote:

Oh sweet merciful Jebus! The Windows API and you're new enough to programming that you don't know what a class is? Die with dignity.

Aww, don't be so mean D:
I'm learning both at the same time... but if it's a bad thing, I guess I'll just learn all the basics first.

[Sly14Cat]

Yes wtd, don't be so hard on Cancer Sol. This forum is dedicated to people who can create elaborate programs and those who can't declare a variable yet as well as many in between.

[Cancer Sol]

Sly14Cat @ 4/10/2013, 6:28 pm wrote:

Yes wtd, don't be so hard on Cancer Sol. This forum is dedicated to people who can create elaborate programs and those who can't declare a variable yet as well as many in between.

Haha, thanks. It doesn't really matter to me though, I think I should learn more before doing this kind of stuff

[Nathan4102]

It might be recommended, but I don't think you HAVE to. I've been working with the winAPI in python, and I know nothing about classes, or string manipulation, or array sorting...

[Panphobia]

But it sure helps, and makes things TONS easier.

[Cancer Sol]

Panphobia @ 4/10/2013, 7:45 pm wrote:

But it sure helps, and makes things TONS easier.

If that's the case, I'll just learn it first XD

Just took a break from compsci for about a week... after I played LoL again, I just couldn't stop playing.
Thank god I'm back to programming though.

[Nathan4102]

I was wondering where you went! Glad ya didn't die or something

[QuantumPhysics]

Wait, are we still on about ops question or what?

[Cancer Sol]

QuantumPhysics @ 4/23/2013, 7:37 am wrote:

Wait, are we still on about ops question or what?

What's an ops question?

@Nathan Haha, thanks for caring