Array of handles

chreez · 03-20-2003

I'm making a program that lists all running processes and gets the handle to the process using OpenProcess() and I had a few questions. I made a struct called Proc that looks like this:

Code:

class Proc
{
public:
HANDLE hproc;
PROCESSENTRY32 proc;
Proc(){ hSnap = NULL; }
};

I know it's not the coolest thing in the world, but it helped me organize the crap alot. Then I declare an array of Procs. Because I need to CloseHandle() for each OpenProcess() that I have, would it work if I did something like this:

Code:

Proc allProcs[256];
...
allProcs[i].hproc = OpenProcess(PROCESS_ALL_ACCESS, TRUE, allProcs[i].proc.th32ProcessID;
...
CloseHandle(allProcs); // no matter how many processes I open, would this close all of them? This could minimize some code if it worked, but I could get around it.

Thanks for your answers
chreez

oh, btw, can a HANDLE and a HWND sometimes be interchangeable?

**neandrake** · 03-20-2003

...I forgot I had an account here....

Anyways, since I can't make an edit in the above section, here's a correction:

Code:

class Proc
{
public:
HANDLE hproc;
PROCESSENTRY32 proc;
Proc(){ hproc = NULL; } //used to be hSnap, but should be this
};

**adrianxw** · 03-21-2003

Since CloseHandle() wants a HANDLE as it's parameter, I would doubt what you propose would compile.

**neandrake** · 03-21-2003

oh, yea, I forgot that, what I meant was

Code:

CloseHandle(allProcs.hproc);

would that work, should've been my original example.

**johnnie2** · 03-21-2003

That would also fail; allProcs by itself is a pointer to the first element in the array, so you'd have to use CloseHandle(allProcs->hproc); at the very least, but that would close the handle of only the first Proc struct.

**neandrake** · 03-22-2003

ok, thanks, perfect answer, even though it means more code, doesn't matter 'cause it's already implemented.

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