alias for proc statement, calling assembly from C

[skippyV]

Trying to determine if I can associate a proc definition with a prototype BUT have the proc take no args while the proto takes several.
For example, I use IDA Pro to grab a disassembly of a function.  It's obvious how many parameters it takes but I don't want
to have to dummy up those parameters to make it link. Besides - the "dummy" parameters generate warnings.
IDA will produce disassembly like:

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sub_2F539A  proc  near
  arg_0 = dword ptr 8
  arg_4 = dword ptr 0Ch
  arg_8 = word ptr  10h
  push   ebp,
  mov   ebp, esp
Since the prologue and epilogue is already there I just put in:

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OPTION PROLOGUE:none
OPTION EPILOGUE:none
On the C side, to call this routine, I have to prototype it like:

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int __stdcall sub_2F978(int*, int*, short*);
And on the masm side I have to tweak the proc statement:

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sub_2F978 proc near STDCALL  arg0:DWORD, arg4:DWORD, arg8:DWORD
Which generates the warnings for unused variables declared in the proc statement - as expected.
So what I'd like to do is:
   - remove the warnings without tweaking the function contents
   - since I know how many parms is needed, use some sort of macro or typedef that
     when combined with the proc statement would satisfy the linker.
Something like:

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parms3 TEXTEQU :DWORD, :DWORD, :DWORD
  sub_2F539A  proc  near  parms3
That way I could have several macros handy. One for each number of input args.

Regards,

[qWord]

what about this:

params macro n:req
   params_txt TEXTEQU <STDCALL>
   params_cntr = 0
   WHILE params_cntr LT n
      params_txt CATSTR params_txt,@SubStr(< ,>,((params_cntr NE 0) AND 1)+1,1),<arg_>,%params_cntr,<:DWORD>
      params_cntr = params_cntr + 1
   ENDM
   EXITM params_txt
endm
...
bla proto params(3)
...
bla proc params(3)
   
   ret
bla endp

[skippyV]

I think you're on the right track, qWord.

You're macro generated the following error:

error A2008:syntax error : STDCALL
fatal error A1010:unmatched block nesting : sub_2F978

I used it with my proc statement as so:

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sub_2F978 proc near STDCALL params(3)

The error is similar to those generated when I list parameters without names in the proc statement.

I should mention that I'm using Visual Studio 2008.

[qWord]

the macro also add 'STDCALL' to the line:

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sub_2F978 proc params(3)This should work. It is the same as writing:

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sub_2F978 proc SDTCALL arg_0:DWORD,arg_1:DWORD,arg_2:DWORD

BTW: the NEAR-keyword ist not needed

[skippyV]

Thanks, qWord  :U
I should have read your macro more carefully.

It will certainly shave off some of my time.