Path: news.cs.au.dk!not-for-mail
From: Flemming Gram Christensen <gram@mjolner.dk>
Newsgroups: comp.lang.beta
Subject: Re: snd.obj : error LNK2001: unresolved external symbol _sndPlaySound
Date: Tue, 25 May 1999 14:42:36 +0200
Organization: University of Aarhus, Department of Computer Science (DAIMI)
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Sascha Kimmel wrote:
> 
> Hello!
> 
> I'm trying to use the MS WINAPI function sndPlaySound
> (http://msdn.microsoft.com/library/sdkdoc/multimed/mmfunc_4uzo.htm) from
> within BETA.
> The program looks as follows:
> 
> ---- cut here ----
> 
> ORIGIN '~beta/guienv/v1.6/guienvall';
> 
> INCLUDE '~beta/guienv/v1.6/private/winnt/guienv_ntiprivate'
>                 '~beta/guienv/v1.6/private/winnt/stddialogs_ntibody'
>                 '~beta/win32lib/v1.6/ntinterface'
>                 '~beta/win32lib/v1.6/winuserconsts';
> 
> BUILD nti '$$/snd.obj' 'snd.c' 'betacc $0 $1';
> 
> -- program: descriptor --
> 
> guienv
> (#
> 
> SND_ASYNC:(# exit 0x0001 #);
> 
> PlaySound: external
>      (#
>                 pszSound:[1]@char;      (* LPCSTR *)
>                 fdwSound:@integer;      (* DWORD *)
>                 result:@integer;
>                 enter (pszSound,fdwsound)
>                 do 'sndPlaySound' -> callStd;
>                 exit result
> #);
> 
>   do
>   ('gleitab.wav',SND_ASYNC)->PlaySound;
> 
> #)
Hi
The playSound is really a macro. Thats is a problem
I used the following code once:

sound.bet:
ORIGIN '~beta/basiclib/v1.6/betaenv';

LINKOPT nti_ms  'winmm.lib'
        nti_gnu '-lwinmm';

-- lib:attributes ---
SND_SYNC:     (# exit 0x0000 #);  (* play synchronously (default) *)
SND_ASYNC:    (# exit 0x0001 #);  (* play asynchronously *)
SND_NODEFAULT:(# exit 0x0002 #);  (* silence (!default) if sound not
found *)
SND_MEMORY:   (# exit 0x0004 #);  (* pszSound points to a memory file *)
SND_LOOP:     (# exit 0x0008 #);  (* loop the sound until next
sndPlaySound *) 
SND_NOSTOP:   (# exit 0x0010 #);  (* do not stop any currently playing
sound *) 
 

PlaySound:external
  (# name:[0]@char;
     hmod:@integer;
     fdwsound:@integer;
     result:@integer;
  enter (name,hmod,fdwsound)
  do 'PlaySoundA'->CallStd;
  exit result
  #);


tstsound.bet:
ORIGIN 'sound';
--program:Descriptor--

(# 
   
do
   ('Maximize',0,SND_ASYNC %Bor SND_LOOP)->playsound;
   getline;
   ('',0,0)->playsound;
   getline;
#)

This plays the sound the user has associated with the windows 
action "maximizing-a-window", it playes it asyncron, and in a loop.

PlaySoundA is the 8-bit edition. PlaySoundW takes WCHAR's as 
parameter. Playsound expands either to playsoundA or PlaysoundW.


/gram
> 
> ---- /cut here ----
> 
> I'm using snd.c just for including the necessary mmsystem.h:
> 
> ---- cut here ----
> 
> #include <windows.h>
> #include <stdio.h>
> #include <mmsystem.h>
> #include <windowsx.h>
> #include <stdlib.h>
> 
> ---- /cut here ----
> 
> When I try to compile this program I get the following error message:
> 
> d:\beta\tricos\nti\ms\snd.obj : warning LNK4042: object specified more
> than once
> ; extras ignored
> snd.obj : error LNK2001: unresolved external symbol _sndPlaySound
> snd.exe : fatal error LNK1120: 1 unresolved externals
> A Link Error Occurred
> 
> Any quick help is appreciated!!
> 
> Regards,
> Sascha Kimmel
> kimmel@tricos.com

-- 
/Flemming Gram Christensen

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