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Index > Macroinstructions > Help me with macros!!

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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
Code:
include '%fasminc%\win32ax.inc'

main:

macro loadapi api,lib
{
        invoke LoadLibrary,lib
        invoke GetProcAddress,eax,api
;the problem begins here
        mov [_#api],eax
        jmp @f
        _#api: dd 0
        @@:
}

        loadapi 'URLDownloadToFileA','urlmon.dll'
        invoke _URLDownloadToFileA,0,htmlfile,localfile,0,0
        ret


htmlfile db 'http://flatassembler.net/download.php',0
localfile db 'html.txt',0

.end main
    


As you see, I'm trying to create a macro to load functions on the fly and create a dword to store the address, so I can call it without too much typing.
But this doesn't work. Please help me make this idea work!! Smile
Post 22 Sep 2006, 02:39
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
I don't know how to tokenize a string but I now the inverse so here it is Very Happy
Code:
include '%fasminc%\win32ax.inc'

main: 

macro loadapi api,lib 
{ 
        invoke LoadLibrary,lib 
        invoke GetProcAddress,eax,`api
;the problem begins here 
        mov [_#api],eax
        jmp @f 
        _#api dd 0
        @@: 
} 

        loadapi URLDownloadToFileA,'urlmon.dll'
        invoke _URLDownloadToFileA,0,htmlfile,localfile,0,0 
        ret 


htmlfile db 'http://flatassembler.net/download.php',0 
localfile db 'html.txt',0 

.end main    


Check if it helps (I hope so)

Regards
Post 22 Sep 2006, 03:06
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
Yes, Thanks!!
That was what I was looking for!! Very Happy
Post 22 Sep 2006, 03:11
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