IsWow64Process

[dedndave]

i wonder if i could get you guys to test this for me
if you are running a 32-bit program (which it is) under a 64-bit OS, the result should be TRUE
if you run it under a 32-bit OS, it should display 00000000

let me know if it works correctly or not, and your OS and bits - thanks   :t

Code Select Expand

        INVOKE  GetModuleHandle,offset szKernel32
        INVOKE  GetProcAddress,eax,offset szIsWow64
        .if eax
            xchg    eax,ebx
            INVOKE  GetCurrentProcess
            push    -1
            push    esp
            push    eax
            call    ebx
            pop     eax
            print   uhex$(eax),13,10
        .else
            print   chr$('IsWow64Process function not present'),13,10
        .endif

        print   chr$(13,10)
        inkey
        INVOKE  ExitProcess,0

i am runing XP-32 SP3 and it displays 00000000

[vogelsang]

It returns 00000001 on Windows 7 64 bit.

[sinsi]

64-bits all return 1 - XPPro, Win7, Win8
32-bits all return 0 - XPPro, Vista, Win7
Function not present - Win2000 

[vogelsang]

I'm guessing - if your doing CPUID stuff, that link should be helpful:

http://developer.amd.com/resources/documentation-articles/processor-and-core-enumeration-using-cpuid/

It contains sample code which calls IsWow64Process.

[Siekmanski]

64 bit windows 8.1 returns 1

[Gunther]

Windows 7-32:

Code Select Expand


00000000

Press any key to continue ...


The test under Windows 7-64 follows this evening.

Gunther

[dedndave]

wow guys - that's great - thanks, again   :t

Sinsi has a regular test facility over there   

[Gunther]

Dave,

wow guys - that's great - thanks, again   :t

Sinsi has a regular test facility over there   

We like you. That's the reason.

Gunther

[Gunther]

Dave,

the output from Windows 7 - 64:

Code Select Expand


00000001

Press any key to continue ...


Gunther

[RuiLoureiro]

00000000       <----- 32 bit XP

Press any key to continue ...