[wdmaudiodev] Re: Create an object of an APO in a win32 APP
- From: Abhinav Singh <abhinav4ever@xxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Sat, 3 Jan 2015 15:44:13 +0530
as i mentioned in my original post, i am creating an instance of the APO to
only check if the APO is installed correctly on the system. I am using the
Windows registry to communicate settings to the APO instance running in the
audio engine process.If there is a better way of checking existence of an APO,
please let me know. I thought of checking if the APO dll is loaded into the
audiodg.exe process but just never really tried that. From:
Frank.Yerrace@xxxxxxxxxxxxx
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Create an object of an APO in a win32 APP
Date: Fri, 2 Jan 2015 21:07:18 +0000
I guess this implies you have some form of private mechanism for communicating
settings to the APO instances that are running in the Windows audio system. Is
that right?
It’s not clear to me why you need to load your APO in order to adjust its
settings through that private mechanism, unless you have a custom “settings”
interface
implemented by the APO that you want to leverage.
Regards,
Frank Yerrace
Microsoft
From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
On Behalf Of Matthew van Eerde
Sent: Friday, January 2, 2015 9:16 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Create an object of an APO in a win32 APP
I see.
If you control the APO, you can update the .inf to include both native and
WOW64 versions of your .dll, and register a control interface in both the
native and
WOW64 COM registries.
From:
wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
On Behalf Of Abhinav Singh
Sent: Tuesday, December 30, 2014 10:18 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Create an object of an APO in a win32 APP
I am creating a deskband(taskbar toolbar, just a simple button) to provide
quick access to the user to turn on/off the APO effect.
From:
Matthew.van.Eerde@xxxxxxxxxxxxx
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Create an object of an APO in a win32 APP
Date: Mon, 29 Dec 2014 17:00:04 +0000
Interesting… why are you instantiating an APO from an Explorer plugin?
From:
wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
On Behalf Of Abhinav Singh
Sent: Wednesday, December 24, 2014 7:04 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Create an object of an APO in a win32 APP
thanks…I was running trying to create the APO object from a 32 bit app which
was causing this problem..I actually encountered this problem when trying to
create an APO instance from a dll loaded
in explorer.exe but somehow it always failed so I decided to check it on a
simple win32 app…a restart fixed the issue with the dll loaded in the explorer
as well.
Sent from Windows Mail
From: Matthew.van.Eerde@xxxxxxxxxxxxx
Sent: Monday, December 22, 2014 1:33 PM
To: wdmaudiodev@xxxxxxxxxxxxx
If you’re running a 32-bit app on a 64-bit version of Windows, this is
expected; APOs are typically native-only.
If you’re running native, check to see that the CLSID in question is registered
under HKEY_CLASSES_ROOT\CLSID\{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} and that
the hosting .dll exists.
From:
wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
On Behalf Of Abhinav Singh
Sent: Monday, December 22, 2014 1:24 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Create an object of an APO in a win32 APP
I am using the code below to create an object of an APO from a normal win32
app. The intention is to check whether the APO is installed in the PC. However
i get a Class Not Registered error
every time i execute the below piece of code.
HRESULT isExistAPO(CLSID CLSID_ClassID, IID IID_InterfaceID)
{
// CLSID_ClassID is the class GUID of the APO
//IID_InterfaceID is the interface ID of the APO
//CoInitialize(NULL);
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
HRESULT hr = S_OK;
IUnknown *pAPO = NULL;
hr = CoCreateInstance(CLSID_ClassID,
NULL,
CLSCTX_INPROC_SERVER,
IID_InterfaceID,
(void**)&pAPO);
if (SUCCEEDED(hr))
{
//APO found
pAPO->Release();
}
else
{
//Failed
}
CoUninitialize();
return hr;
}
Other related posts:
