Cheat Engine

Varreon · Posted: Tue Jul 10, 2007 10:32 am Post subject: Pointer Issue c++

Im writing up a macro program for rs and i started with the ui and the recording of points. I declared:

POINT *inv[29]; //to hold each inv slot point and rather than me reference inv[0], i made the array larger.

int cur=1; //for tracking through recording.

THen to record the points I have this:
if (setup==true & table->vkCode==162){
// ShowMessage(cur);
GetCursorPos(inv[cur]);
cur++;

up to here it works fine.

Then to play them back, I get an access error. Im not very knowledgeable on pointers, maybe you guys can help:

POINT *p = inv[cur];
SetCursorPos(p->x,p->y);
cur++;

TheSorc3r3r · Posted: Tue Jul 10, 2007 1:31 pm Post subject:

I don't see the need for a pointer at all in this situation, but if you insist..

Is inv allocated memory at that point in execution? It appears to be a global variable and you can easily go wrong with those..

appalsap · Posted: Tue Jul 10, 2007 1:36 pm Post subject:

sorcerer,

when you do

Varreon · Posted: Tue Jul 10, 2007 2:39 pm Post subject:

id rather not use pointers, but GetCursorPos requires one. If theres a way around this, id be glad to know.

appalsap · Posted: Tue Jul 10, 2007 2:42 pm Post subject:

No it doesn't. It accepts two integers.

Varreon · Posted: Tue Jul 10, 2007 8:48 pm Post subject:

im using bcb. It sais that it requires a pointer to a point. I tried giving it two integers, but it sais that it is two few parameters.

Dark Byte · Posted: Wed Jul 11, 2007 5:17 am Post subject:

p->x and p->y are also just 2 integers (dereferenced from the p object)

so why wouldn't SetCursorPos(0,0) work?

or
int x,y;
SetCursorPos(x,y);

and if it REALLY needs a pointer and not a point then

SetCursorPos(&x,&y);

Varreon · Posted: Wed Jul 11, 2007 10:30 am Post subject:

SetCursorPos takes two integers, but GetCursorPos takes a pointer to a point.
I recently figured out that in getcursorpos, i could do &inv, and not declare it a pointer at all.