Mute lyd

Kode 

#include <windows.h>
#include <mmdeviceapi.h>
#include <iostream>
#include <endpointvolume.h>
#pragma comment(lib,"ole32")

BOOL MuteAudio()
{
   HRESULT hr;
   CoInitialize(NULL);
   IMMDeviceEnumerator *deviceEnumerator = NULL;
   hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IMMDeviceEnumerator), (LPVOID *)&deviceEnumerator);
   if (!SUCCEEDED(hr))
   {
      std::cout << "CoCreateInstance failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }
   IMMDevice *defaultDevice = NULL;
   hr = deviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &defaultDevice);
   deviceEnumerator->Release();
   deviceEnumerator = NULL;
   if (!SUCCEEDED(hr))
   {
      std::cout << "GetDefaultAudioEndpoint failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }
   IAudioEndpointVolume *endpointVolume = NULL;
   hr = defaultDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC_SERVER, NULL, (LPVOID *)&endpointVolume);
   defaultDevice->Release();
   defaultDevice = NULL;
   if (!SUCCEEDED(hr))
   {
      std::cout << "Activate failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }
   // -------------------------
   endpointVolume->SetMute(TRUE, NULL);
   endpointVolume->Release();
   CoUninitialize();
   std::cout << "Mute Success" << std::endl;
   return TRUE;
}

BOOL UnmuteAudio()
{
   HRESULT hr;
   CoInitialize(NULL);
   IMMDeviceEnumerator *deviceEnumerator = NULL;
   hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IMMDeviceEnumerator), (LPVOID *)&deviceEnumerator);
   if (!SUCCEEDED(hr))
   {
      std::cout << "CoCreateInstance failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }
   IMMDevice *defaultDevice = NULL;
   hr = deviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &defaultDevice);
   deviceEnumerator->Release();
   deviceEnumerator = NULL;
   if (!SUCCEEDED(hr))
   {
      std::cout << "GetDefaultAudioEndpoint failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }
   IAudioEndpointVolume *endpointVolume = NULL;
   hr = defaultDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC_SERVER, NULL, (LPVOID *)&endpointVolume);

   defaultDevice->Release();
   defaultDevice = NULL;
   if (!SUCCEEDED(hr))
   {
      std::cout << "Activate failed" << std::endl;
      CoUninitialize();
      return FALSE;
   }

   // -------------------------

   endpointVolume->SetMute(FALSE, NULL);

   endpointVolume->Release();

   CoUninitialize();

   return TRUE;
}

int main()
{
   MuteAudio();
   Sleep(10000);
   UnmuteAudio();
}