Question about data variables.

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Overflowz

Joined: 03 Sep 2010
Posts: 1046

Overflowz 22 Apr 2011, 22:02

Hello everyone, I have problem here.. I saw here topic which 1 guy posted and I though about it because it's really useful but compiler shows errors. Here's what I mean:

Code:

format PE GUI 4.0
include 'WIN32A.INC'
entry main
section '.data' data readable writeable
fbyte db "Hello",0x20
sbyte db "World!",0
result db fbyte,sbyte
section '.text' code readable executable
proc main
invoke MessageBox,0,result,result,MB_OK
ret
endp
section '.idata' import data readable
library user32,'user32.dll'
include 'API\USER32.INC'

why result variable can't define those two variables as one ?

22 Apr 2011, 22:02

typedef

Joined: 25 Jul 2010
Posts: 2909
Location: 0x77760000

typedef 22 Apr 2011, 22:24

because it has to be a dword pointer...and you have to access the 2nd string pointer by adding 4 (size of dword in this case)

22 Apr 2011, 22:24

Overflowz

Joined: 03 Sep 2010
Posts: 1046

Overflowz 22 Apr 2011, 22:39

typedef
Ohh... Didn't though that. My bad sorry ^^

22 Apr 2011, 22:39

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