.data

hFile DD ?
mov [info.x],2
mov [info.y],2

push ...
OPEN_EXISTING <----Not this
call [CreateFile]

invoke WriteFile,[hFile],info,sizeof.FILE_INFO......


;; in another program

FILE_INFO in = {0,0}

if FILE_INFO 0,0
invoke ReadFile,[hFile],in,size......

first FILE_INFO is in second FILE_INFO now.


    

;
; Program to write a structure to a file and then read it back.
; Good for designing your own file format 
;
;  Enjoy
;

format pe console 4.0

include 'win32ax.inc'
include 'api/kernel32.inc'

entry main

.data
    msg1 db 'Wrote to file ',0
    msg2 db 'Read from file ',0
    txt_out_format db '%s {%u %u}',13,10,0
    ;Make a struct
    struct OVERFLOWZ
           _x dd ?   ; OVERFLOWZ + 0
           _y dd ?   ; OVERFLOWZ + 1
    ends

   _OvrFlwz OVERFLOWZ 0,0
   _OvrFlwz_New OVERFLOWZ 0,0

hFile dd ? ; File handle
nBytesWritten dd ?
nBytesRead    dd ?
.code
    proc main
         mov [_OvrFlwz._x],2
         mov [_OvrFlwz._y],4
    ;this will attempt to write the raw struct to the file 'file.bin'. 8 bytes total

         invoke CreateFile,'file.bin',GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL

         mov    [hFile],eax

         invoke WriteFile ,eax,_OvrFlwz,sizeof.OVERFLOWZ,nBytesWritten,NULL

         invoke CloseHandle,[hFile]

         invoke printf,txt_out_format,msg1,[_OvrFlwz._x],[_OvrFlwz._y]

         ;Now read the data back into a new struct; 8 bytes to read

         invoke CreateFile,'file.bin',GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL

         mov    [hFile],eax

         invoke ReadFile,eax,_OvrFlwz_New,8,nBytesRead,NULL

         invoke CloseHandle,[hFile]

         invoke printf,txt_out_format,msg2,[_OvrFlwz_New._x],[_OvrFlwz_New._y]

         invoke system,'pause'
        push eax
        call [ExitProcess]
    endp

section '.idata' import data readable
        library kernel32,'kernel32.dll',\
                  msvc  ,  'msvcrt.dll'
 import msvc,\
        system,'system',\
        printf,'printf'
    

I don't even know what the hell does struct ...

struct MY_STRUCT
        x dd ?
        y dd ?
ends

same as

label:
        [0x100]: db  x ?
        [0x101]: db  y ?
        ;ends here.....
                              accessing will be
        label.x or label.y

^ It's just like playing around on the stack:
;For example if you passed it as a value to a procedure

proc  proc_

mov eax , [ESP+8]
       [eax+label.x] or eax+MY_STRUCT.x will cast and give you the value in [ESP+8] which is [MY_STRUCT+4]

Get it now? :D

Dude you should learn atleast C or JAVA, or VB LOL... :



    

I'm gonna learn C after I'll go university. I'm 17 only now

You can use DOS interrupts maybe....

If you want pure assembly

call [ALIAS_HERE]