[wdmaudiodev] Re: Friendlyname for KS-device...
- From: "Mike Garrett" <mike.garrett@xxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Wed, 29 Jan 2003 06:46:21 -0600
Tobias,
I recently went through the same problem.
SetupDiGetDeviceRegistryProperty() was a bust. However, this worked
when added to the pin enumeration routine (enum.cpp,
CKsEnumFilters::EnumFilters if you are using the DirectKS sample):
// Get Device Friendly Name
HKEY hkey=SetupDiOpenDeviceInterfaceRegKey(hDevInfo,&DID,0,
KEY_SET_VALUE|KEY_QUERY_VALUE);
if (hkey!=INVALID_HANDLE_VALUE)
{
TCHAR szFriendlyName[MAX_PATH];
DWORD dwmess = sizeof(szFriendlyName);
DWORD dwtype;
if (ERROR_SUCCESS == RegQueryValueEx(
hkey,
TEXT("FriendlyName"),
0,
&dwtype,
(LPBYTE)
szFriendlyName,
&dwmess))
_tcscpy(pnewFilter->m_szFriendlyName,
szFriendlyName);
RegCloseKey(hkey);
}
Mike
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of wdm
Sent: Tuesday, January 28, 2003 4:13 AM
To: 'wdmaudiodev@xxxxxxxxxxxxx'
Subject: [wdmaudiodev] Friendlyname for KS-device...
...apart from my success with low latency figures,
I still have a problem concerning my "user-interface".
I want to let the user select the ks-device he wants
to use for streaming. So I thought the thing to do is
call "SetupDiGetDeviceRegistryProperty" for the value
of "SPDRP_FRIENDLYNAME".
Unfortunately this call always returned with error-
code 13 (ERROR_INVALID_DATA).
Martin told me to try to use the KSUSER alias.
I must admit though, that I'm not that familiar
with this whole streaming-architecture yet.
So if anyone could give me a hint on how to either
get the friendlyname or how to use the "KSUSER alias"
to perhaps do so I'd be really glad.
Best regards,
Tobias
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