MM_MIXM_CONTROL_CHANGE; which component to include

[Shiju]

Hello,
We have developed an application that makes use of
MM_MIXM_CONTROL_CHANGE windows event.This is the volume key in the
recent keyboards. The application works fine on windows XP professional.
But does not work on Windows XP embedded .So I feel that I am missing
some XPE component. Could anyone of you help me to find out which
component to be included in XPE to recognize MM_MIXM_CONTROL_CHANGE events.

Thanks & Regards,
Shiju

 

[KM]

Shiju,

You specifically seem to need these components:
"Primitive: Winmm",
"Microsoft Kernel System Audio Device".


But I'd start with "Audio Control Panel" component and resolve all the
component's dependencies.

KM

 

[Shiju]

Hi,
All the below mentioned components were already included and
dependencies resolved. Still the application does not response to
MM_MIXM_CONTROL_CHANGE events. But we have no issues with Windows XP
professional.Is there any specific components to be included for
MM_MIXM_CONTROL_CHANGE events ?

 

[KM]

Shiju,

I don't really have a good answer for you.

Try XPProEmulation project from www.xpefiles.com and see if you app can work on XPe at all (it probably will).
Then you may use FileMon/Regmon tools (www.sysinternals.com) to see what's missing.