check for our Plug n Play Audio Output Device. If(pdsdd->Type = DIRECTSOUNDDEVICE_TYPE_EMULATED) ||(pdsdd->DataFlow = DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE)) If((pdsdd->Type = DIRECTSOUNDDEVICE_TYPE_VXD) * Purpose - This function is called back by the system for each Audio device available.īOOL CALLBACK AudioDevDataCallback(DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA *pdsdd, void *pv) * Return Value - next device info needed or not. * pdsdd - Pointer to structure containing description of the Audio device. IKsPropertySet_Get(pIKSPS, DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE, 0, 0, (void *) (&dsdsded), sizeof(dsdsded), &dwLen) now we can use that interface to enumerateĭsdsded.Callback = AudioDevDataCallback // Callback LOGDUMP(_T(" class factory to create a property set operation failed ")) PICF->CreateInstance(0, IID_IKsPropertySet, (void **) (&pIKSPS)) use the class factory to create a property set LOGDUMP(_T(" DirectSoundPrivate operation failed ")) PFNGCO(CLSID_DirectSoundPrivate, IID_IClassFactory, (void **) (&pICF)) Check SPAM folder if you do not receive an email.
#PNP AUDIO DEVICE VISTA DRIVER#
Vendor: Product: Hardware: OS: Version: Driver Date: Please enter your email address, and we will email you the download link and release notes for this driver. now use it to get the DirectSoundPrivate class factory interface USB PnP Sound Device Driver Download - PC Matic Driver Library. LOGDUMP(_T(" DllGetClassObject operation failed ")) If (!(pFNGCO = (LPFNGETCLASSOBJECT)(GetProcAddress(hDS,"DllGetClassObject")))) get the DllGetClassObject function pointer LOGDUMP(_T(" DSOUND.DLL loading failed ")) * Purpose - To poll the system audio devices and updateĭSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_DATA dsdsded
#PNP AUDIO DEVICE VISTA CODE#
The following is the code snippet being used:
* OS Version: Build 6000 (Ready to Market build)
#PNP AUDIO DEVICE VISTA 32 BIT#
* Operating System: Microsoft Vista Ultimate 32 bit Hence I loss the other device.įollowing are the details of my development environment: Though there are 2 audio devices present in my system but sometimes the callback registered is invoked just once. But on Windows Vista (32 bit) I am facing some unique problems. This approach is working perfectly find in Window's XP and 2K.
I populate this data structure and register it with dsound.dll.Īs a result of it a callback registered by me is invoked depending upon the number of audio devices present in the system. To provide this feature I make use of 'DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_DATA' data structure. I have build a application which enumerates all the audio devices installed in the system and searches for a particular PnP audio output device.
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