Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Using MMSYSTEM in Visual C++

Posted on 1998-03-15
6
Medium Priority
?
1,267 Views
Last Modified: 2008-02-01
I am having trouble using the Windows Multimedia System (waveInOpen and such functions) under Visual C++. The code compiles OK, but does not link. When I try to link I get the following error messages:

RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInClose@4
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInReset@4
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInOpen@24
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInAddBuffer@12
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInUnprepareHeader@12
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInPrepareHeader@12
RecordDlg.obj : error LNK2001: unresolved external symbol __imp__waveInStart@4
Debug/Amuse.exe : fatal error LNK1120: 7 unresolved externals
Error executing link.exe.

I understand that the compiler is unable to resolve the external references, probably because there is no import library for the MMSYSTEM.DLL file. How can I solve this problem?
0
Comment
Question by:Slarti
  • 3
  • 2
6 Comments
 
LVL 4

Expert Comment

by:jtwine100697
ID: 1183491
  Add mmsystem.lib to your linker library list.

-=- James.
0
 

Expert Comment

by:larockd
ID: 1183492
James,

Actually you have the wrong library.  The library to be added is
winmm.lib

Below is the information... On the function

waveInStart
 
Windows NT
 Yes
 
Win95
 Yes
 
Win32s
 Yes
 
Import Library
 winmm.lib
 
Header File
 mmsystem.h
 
Unicode
 No
 
Platform Notes
 None
 

0
 
LVL 4

Expert Comment

by:jtwine100697
ID: 1183493
 Yep...  Yer right!   That is what I get for answering when I am not at my development machine... :P

   Slarti, reject my previous answer.  "larockd" deserves the points.

-=- James.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 2

Author Comment

by:Slarti
ID: 1183494
Sorry jtwine.. Of course the first thing I tried was to include mmsystem.lib but the file does not exist. I was not aware that the import library name was listed in the online help of the function, so larockd's answer really deserves the points.

Larockd: Please post a blank answer so I can accept it.
0
 
LVL 4

Expert Comment

by:jtwine100697
ID: 1183495
  That is what I said...  It is not? :P

-=- James.
0
 

Accepted Solution

by:
larockd earned 200 total points
ID: 1183496
Jtwine...

Thanks....

Darrell



0

Featured Post

Vote for the Most Valuable Expert

It’s time to recognize experts that go above and beyond with helpful solutions and engagement on site. Choose from the top experts in the Hall of Fame or on the right rail of your favorite topic page. Look for the blue “Nominate” button on their profile to vote.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will show you some of the more useful Standard Template Library (STL) algorithms through the use of working examples.  You will learn about how these algorithms fit into the STL architecture, how they work with STL containers, and why t…
IntroductionThis article is the second in a three part article series on the Visual Studio 2008 Debugger.  It provides tips in setting and using breakpoints. If not familiar with this debugger, you can find a basic introduction in the EE article loc…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.

876 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question