Q77698: How to Determine if Multimedia Windows Is Running

Article: Q77698
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.0
Operating System(s): 
Keyword(s): kb16bitonly
Last Modified: 05-NOV-1999

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.0 
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SUMMARY
=======

When Microsoft Multimedia Windows is run, certain drivers, such as MMSOUND.DRV
and MMSYSTEM.DLL, are loaded immediately. An application can use this
information to determine whether Multimedia Windows is running, as follows:

     hModule = GetModuleHandle("mmsystem.dll");
     if (!hModule)
        {
        bMultimedia = FALSE;
        MessageBox(NULL,
             "This application should be run with MMWindows",
             "Alert", MB_OK);
        }

GetModuleHandle() attempts to retrieve the "module instance" handle to the
MMSYSTEM dynamic-link library (DLL). The return value is zero if MMSYSTEM has
not been loaded and greater than zero if MMSYSTEM is loaded. Therefore, when
hModule is zero, Multimedia Windows is not running; otherwise, Multimedia
Windows is running.

Additional query words: 3.00

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Keywords          : kb16bitonly 
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK300
Version           : WINDOWS:3.0

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