Microsoft KB Archive/170087

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BUG: DriverCallback Return Value Invalid

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Q170087

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The information in this article applies to:


 * Microsoft Win32 Device Driver Kit (DDK) Windows 95

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SYMPTOMS
DriverCallback returns an invalid value that has nothing to do with the status of the call.

CAUSE
DriverCallback incorrectly overwrites the actual return value right before the function exits.

RESOLUTION
To work around this problem, do not use the return value as a reference for return status.

STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION
DriverCallback is a Windows API function that is primarily used by multimedia installable drivers.

Additional query words: mm multimedia

Keywords :

Issue type : kbbug

Technology : kbAudDeveloper kbWin95search kbWinDDKSearch kbWin32sSearch kbWin32DDK95 kbWin32DDKSearch