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toggle.cpp
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toggle.cpp
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// toggle.cpp : main project file.
#include "stdafx.h"
#include <Windows.h>
#include <mmdeviceapi.h>
#include <Functiondiscoverykeys_devpkey.h>
#include "SetDefaultAudioPlaybackDevice.h"
using namespace System;
using namespace System::Collections::Generic;
void ThrowIfError(HRESULT hr, String^ message)
{
if (!SUCCEEDED(hr))
{
throw gcnew Exception(String::Format("HRESULT: {0} - {1}", hr, message));
}
}
int main(array<System::String ^> ^args)
{
array<String^>^ favouriteDevices = args;// { "Siberia 800 Rear Panel Optical", "Njoy Speaker" };
IMMDeviceEnumerator* pEnumerator;
const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
HRESULT hr = CoCreateInstance(
CLSID_MMDeviceEnumerator, NULL,
CLSCTX_ALL, IID_IMMDeviceEnumerator,
(void**)&pEnumerator);
ThrowIfError(hr, "CoCreateInstance");
IMMDeviceCollection* pDeviceCollection;
hr = pEnumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &pDeviceCollection);
ThrowIfError(hr, "EnumAudioEndpoints");
UINT deviceCount;
hr = pDeviceCollection->GetCount(&deviceCount);
ThrowIfError(hr, "GetCount");
IMMDevice* defaultDevice;
hr = pEnumerator->GetDefaultAudioEndpoint(eRender, eMultimedia, &defaultDevice);
ThrowIfError(hr, "GetDefaultAudioEndpoint");
IPropertyStore *pStore;
hr = defaultDevice->OpenPropertyStore(STGM_READ, &pStore);
ThrowIfError(hr, "OpenPropertyStore");
PROPVARIANT pv;
hr = pStore->GetValue(PKEY_Device_DeviceDesc, &pv);
ThrowIfError(hr, "GetValue");
String^ defaultDeviceName = gcnew String(pv.pwszVal);
Console::WriteLine("Default device: {0}", defaultDeviceName);
for (int i = 0; i < deviceCount; i++)
{
IMMDevice* pDevice;
hr = pDeviceCollection->Item(i, &pDevice);
ThrowIfError(hr, "Item " + i);
LPWSTR strId;
hr = pDevice->GetId(&strId);
ThrowIfError(hr, "GetId");
DWORD state;
hr = pDevice->GetState(&state);
ThrowIfError(hr, "GetState");
IPropertyStore *pStore;
hr = pDevice->OpenPropertyStore(STGM_READ, &pStore);
ThrowIfError(hr, "OpenPropertyStore");
PROPVARIANT pv;
hr = pStore->GetValue(PKEY_Device_DeviceDesc, &pv);
ThrowIfError(hr, "GetValue");
Console::WriteLine(gcnew String(pv.pwszVal));
String^ devName = gcnew String(pv.pwszVal);
if (((IList<String^>^)favouriteDevices)->Contains(devName) && devName != defaultDeviceName)
{
hr = SetDefaultAudioPlaybackDevice(strId);
break;
}
}
}