Need some help with uType in a Messagebox with fasm

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erg322(NOOB)

Joined: 28 Dec 2012
Posts: 3

erg322(NOOB) 28 Dec 2012, 02:52

I'm working at assembling Messagebox but I'm having trouble with uType.Even in the Hello example provided with FASM.

I can make uType = 0 or NULL or MB_OK and it compiles and runs perfectly but I want to use all the other buttons and Icons that Microsoft show in their Messagebox exemplar.

If I make uType MB_OKCANCEL it will compile but I end up with a program that never opens.

Any help would be appreciated....I've googled this problem and I can't find an equivalent fragment of code to give me a clue to what to do.

28 Dec 2012, 02:52

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20417
Location: In your JS exploiting you and your system

revolution 28 Dec 2012, 03:05

Works for me:

Code:

; example of simplified Windows programming using complex macro features

include 'win32ax.inc' ; you can simply switch between win32ax, win32wx, win64ax and win64wx here

.code

  start:
 invoke  MessageBox,HWND_DESKTOP,"Hi! I'm the example program!",invoke GetCommandLine,MB_OKCANCEL
 invoke  ExitProcess,0

.end start

28 Dec 2012, 03:05

erg322(NOOB)

Joined: 28 Dec 2012
Posts: 3

erg322(NOOB) 28 Dec 2012, 04:02

Many Thanks for the code fragment.

I just get the different styles and add them together and it works a treat.

Before I was pushing values onto the stack and calling MessageBox, obviously it's not the best way to do it.

28 Dec 2012, 04:02

ManOfSteel

Joined: 02 Feb 2005
Posts: 1154

ManOfSteel 28 Dec 2012, 07:24

How do you think the "invoke" macro does it? Precisely by "pushing values onto the stack and calling MessageBox": http://flatassembler.net/docs.php?article=win32#1.3

So you must have done something wrong in your code.

28 Dec 2012, 07:24

erg322(NOOB)

Joined: 28 Dec 2012
Posts: 3

erg322(NOOB) 28 Dec 2012, 08:59

Many thanks Man of Steel.

It was how I was declaring uType with an equ instead of using a db so it could take on a value or add multiple types together.

I can now do both ways, should have RTFM instead of running around for a code fragment to work it out.

I'l fiddle with this for a while and then try and figure out a dialog box.

28 Dec 2012, 08:59

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