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kohlrak



Joined: 21 Jul 2006
Posts: 1421
Location: Uncle Sam's Pad
kohlrak
I noticed in my programs that putting "handle:" at the top of the program works for almost all scenarios i need for handles. But apparently it seems that for those cases it just needs a unique ID. My theory was that handles are mearly pointers to the program itself. That would ensure the program got a unique ID and one could just add the pointer to the program to all the pointers in the program file and it would be easy. Welp, i never did printf the handle method i used till now. It turns out that the variable gets the value of 0. So, i came up with a way to check if i'm right (beause if you declare it after the format part, it adds 4kb to it). But i'm assuming that if we all ran it on our computers it would ensure that it works, because it could just end up being one wacky coincidence on my computer.

Code:
use32
format PE GUI 4.0

handlecalcvar:

handle = handlecalcvar-4096

entry main
include '%fasminc%\win32ax.inc'
section '.code' readable writeable executable
good du "Please post that it worked.", 10, "Kohlrak found how to get a handle without calling GetModuleHandle.", 0
bad du "Please post that it didn't work.", 0
main:
invoke  GetModuleHandle, 0
        cmp eax, handle
        jne DARN
invoke  MessageBox, HWND_DESKTOP, good, 0, MB_OK
        jmp YAY
DARN:
invoke  MessageBox, HWND_DESKTOP, bad, 0, MB_OK
YAY:
invoke  ExitProcess, 0

section '.idata' readable writeable import

library kernel, 'kernel32.dll',\
        user, 'user32.dll'

import kernel, GetModuleHandle, 'GetModuleHandleA',\
               ExitProcess, 'ExitProcess'

import user, MessageBox, 'MessageBoxW'          


I know, no error checking, but personally i think that since this is a restricted test, if anything goes wrong you can fix it.

I hope this works. That way, i'm not only right about something for once, but I will also have a way to get away from the GetModuleHandle and perhaps some other goodies will follow, as well.
Post 21 Jun 2007, 09:27
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ManOfSteel



Joined: 02 Feb 2005
Posts: 1154
ManOfSteel
Yep, it works here with Win98SE.
Post 23 Jun 2007, 06:22
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kohlrak



Joined: 21 Jul 2006
Posts: 1421
Location: Uncle Sam's Pad
kohlrak
Thank you.
Post 23 Jun 2007, 06:45
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handyman



Joined: 04 Jun 2007
Posts: 40
Location: USA - KS
handyman
It works here with my Win98SE.
Post 23 Jun 2007, 12:39
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kohlrak



Joined: 21 Jul 2006
Posts: 1421
Location: Uncle Sam's Pad
kohlrak
Coooooool... Thank you.
Post 23 Jun 2007, 12:40
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