Runtime error with winelib and CreateMutex()

[lawson_whitney at juno.com]

On Wed, 18 Apr 2001, Jerry Thomas wrote:

> Can't find anything at goggle, so hope someone in this group can help.
>
> I've installed codeweavers-wine-20010305-1.i386.rpm on my RedHat 7.0,
> which put everything in /opt/wine/.
> I built the following program (in file hello.cpp):
>
> #include <iostream.h>
> #include <windows.h>
>
> int main()
> {
>    INT i = 0;
>    cout << "i = " << i << endl;
>
>    HANDLE h = CreateMutex(0, FALSE, "h");
>
>    return 0;
> }
>
> compiling with:
>
> g++ -o hello -I/opt/wine/include/wine -L/opt/wine/lib -lkernel32
> hello.cpp
>
> When the executable 'hello' is run, the following is output:
>
> i = 0
> wine client error:(nil):  buffer overflow 16 bytes
>
> Anyone know why the line initializing variable h is causing this error?

It isn't.  You can't just link a program to a wine dll and expect it to
work.  You must import the dlls you want in a .spec file and use
winebuild to generate the - glue code? - to hold it together.  The
easiest way I know to do it is just to use winemaker on it, since it
knows better than I how to work winelib.  My wine is in /usr/local/lib
where it belongs :-) and I always have to hack that into the
Makefile winemaker generates - setting

WINE_LIBRARY_PATH = -L/usr/local/lib

works for me.  If you must use c++, I guess you will have to hack the
actual entry point for the thing into the spec file.  When I named it
WinMain, all I could find in the object was WinMain__Fv, so I used that.

>
> thanks in advance,
>
> Jerry
Script started on Wed Apr 18 21:57:47 2001
[whit at giftie hello]$ ./hello
i = 0
[whit at giftie hello]$ exit
exit

Script done on Wed Apr 18 21:58:02 2001

If you build it right, you don't get that error, but I can't see that it
does anything useful.

Lawson

This message is brought to you by Wine-20010326, junopine-2.0.2,
Juno 2.0.11, pine-4.10, and linux-2.4.3.
---cut here


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