Knowledge Base

PRB: mixerOpen Function Callbacks Not Available in Win32

Article ID: 163356

Article Last Modified on 11/21/2006

Microsoft Win32 Application Programming Interface, when used with:
- Microsoft Windows 95

This article was previously published under Q163356

SUMMARY

MORE INFORMATION

As documented in the Windows Sound System 2.0 DDK, applications can use the mixerOpen API with a dwCallback parameter to specify the address of a callback function or a handle to a window that is called when the state of an audio mixer line or control associated with the device being opened is changed.

SYMPTOMS

In Win32 the mixerOpen dwCallback parameter cannot specify the address of a callback function. This API only allows the dwCallback parameter to be a handle to a window.

STATUS

This behavior is by design.

Additional query words: 4.00 KBDSupport kbdsh

Keywords: kbmm KB163356