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Date:	Tue, 22 May 2001 07:20:23 +1000 (EST)
From:	=?iso-8859-1?q?Danny=20Smith?= <danny_r_smith_2001 AT yahoo DOT co DOT nz>
Subject:	Re: Linking with MAPI problems
To:	"Peschier, J. \(r&d\)" <Jeroen DOT peschier AT soz DOT pinkroccade DOT nl>,
	"'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
In-Reply-To:	<608FFE690078D3118A940000F87B142301CDC6E2@ASZMSG002.gak.nl>
MIME-Version:	1.0

--- "Peschier, J. (r&d)" <Jeroen DOT peschier AT soz DOT pinkroccade DOT nl> wrote: > 
> Hi!
> 
> I am having problem linking with the mapi library:
> 
> gcc -c MailTest.c
> gcc -o test.exe MailTest.o -lmapi32
> MailTest.o(.text+0x3f):MailTest.c: undefined reference to
> `MAPISendMail AT 20'
> collect2: ld returned 1 exit status
> make: *** [test.exe] Error 1
> 
> I've checked that the mapi.h headerfile provided by Cygwin provides a
> prototype for MAPISendMail. According to the FAQ linking this way to
> the
> mapi library should work. 



For some reason, that function name is not in the import lib for
mapi32.dll.    There may be a good reason for that or it may be an
oversight.  In the event, that is why you got the undefined reference.

An immediate solution is to load  mapi.dll at runtime (LoadLibrary) 
and use  GetProcAddress function to get the entry point

Danny











The code I'm trying to compile is below:
> 
> ---------------------------code MailTest.c:
> #include <windows.h>
> #include <mapi.h>
> 
> int main(char **argv, int argc)
> {
>     MapiMessage message;
> 
>     if (MAPISendMail(0, 0, &message, MAPI_DIALOG, 0) !=
> SUCCESS_SUCCESS)
>         printf("Something went wrong\n");
>     else
>         printf("There you go\n");
> }
> ---------------------------
> 
> I'm new to Cygwin but not new to gcc. I'm probably staring myself
> blind on
> something obvious here... Or perhaps it's a Cygwin or Windows 2000
> specific
> artifact that I'm unaware of? Anyway, thanks in advance for any help
> offered.
> 
> Jeroen Peschier
> 
>
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> 
> 
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