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Re: Using window classes
- To: JSONCRAIG at aol dot com
- Subject: Re: Using window classes
- From: Mumit Khan <khan at xraylith dot wisc dot edu>
- Date: Sun, 13 Dec 1998 13:18:56 -0600
- cc: gnu-win32 at cygnus dot com
JSONCRAIG@aol.com writes:
> I am trying to create a system global class windows in my program. when I tr
> y
> to compile it it says this...
(fyi, it's "link", not "compile" step that complains).
>
> proj.o(.text+0x202):proj.cc: undefined reference to `TheProc__FPvUiUil@16'
> collect2: ld returned 1 exit status
>
> do I need to link something extra? If so what?
>
Please always specify the compiler version and the platform you're using
whenever reporting problems like this. ``gcc -v'' reports the version and
platform info.
The symbol it's looking for:
% echo TheProc__FPvUiUil | c++filt
TheProc(void *, unsigned int, unsigned int, long)
The linker is looking for a WINAPI/STDCALL version this method, and can't
find it. Either the prototype doesn't match or you're not linking with the
right library.
You probably just forgot to use `extern "C"' when compiling the
implementation of TheProc.
No way to tell without more details.
Regards,
Mumit
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