call C++ func from asm

[jj2007]

Luce,

My version works perfectly, see attachment. There is no need for PROTO C if you use stdcall in the C code, too.

By the way, Olly has massive problems with the executable.

[ToutEnMasm]

My version works perfectly, see attachment. There is no need for PROTO C if you use stdcall in the C code, too.

The need is to use the same type of prototype ,c or stdcall or ....

[qWord]

The need is to use the same type of prototype ,c or stdcall or ....

What is wrong with jj's first example?

.model flat, stdcall
asmprint proto

...

extern void __stdcall asmprint();

[jj2007]

What is wrong with jj's first example?

Actually, nothing is wrong :bg
But...

Here is what works for me:

"%ProgramFiles%\Microsoft Visual Studio 9.0\VC\bin\cl.exe" /c /Zl /Fa /Fp TestAsmC.c
\Masm32\bin\ml.exe /nologo /c /coff  /Fl /Sn /Fo "TestC"
\masm32\bin\link.exe \masm32\lib\msvcrt.lib TestAsmC.obj "TestC.obj" /OUT:"TestC.exe"

... don't let the C compiler take its own crt library. You also need environment variables for the C compiler part (and for reasons I don't understand, my puter refuses to accept the global include variable ::), so I need to set it in the batch file)

Overall, mixing asm and C (or C++, even Visual Basic for apps) works just fine, and the size of the final exe is quite convincing at 1024 bytes, but it is not for noobs - finding the right setup is kind of messy.

[ToutEnMasm]

What is wrong is,i rewrite it in bold.

My version works perfectly, see attachment. There is no need for PROTO C if you use stdcall in the C code, too

With the answer:
The need is to use the same type of prototype ,c or stdcall or ....
Did you see know what is the subject ?..

[jj2007]

With the answer:
The need is to use the same type of prototype ,c or stdcall or ....

Which is exactly what I did, so I sincerely hope that you are finally happy, Luce :bg

[ToutEnMasm]

Good,
There is sometimes need to be more clear.Sorry, if it was writed too big.  :P