以下是使用Core Audio API將另一個進程靜音的示例。
#include <windows.h>
#include <iostream>
#include <mmdeviceapi.h>
#include <endpointvolume.h>
#include <Audiopolicy.h>
#include <comdef.h>
#include <comip.h>
#define CHECK_HR(hr) \
if(FAILED(hr)) { \
std::cout << "error" << std::endl; \
return 0; \
}
_COM_SMARTPTR_TYPEDEF(IMMDevice, __uuidof(IMMDevice));
_COM_SMARTPTR_TYPEDEF(IMMDeviceEnumerator, __uuidof(IMMDeviceEnumerator));
_COM_SMARTPTR_TYPEDEF(IAudioSessionManager2, __uuidof(IAudioSessionManager2));
_COM_SMARTPTR_TYPEDEF(IAudioSessionManager2, __uuidof(IAudioSessionManager2));
_COM_SMARTPTR_TYPEDEF(IAudioSessionEnumerator, __uuidof(IAudioSessionEnumerator));
_COM_SMARTPTR_TYPEDEF(IAudioSessionControl2, __uuidof(IAudioSessionControl2));
_COM_SMARTPTR_TYPEDEF(IAudioSessionControl, __uuidof(IAudioSessionControl));
_COM_SMARTPTR_TYPEDEF(ISimpleAudioVolume, __uuidof(ISimpleAudioVolume));
IAudioSessionManager2Ptr CreateSessionManager()
{
HRESULT hr = S_OK;
IMMDevicePtr pDevice;
IMMDeviceEnumeratorPtr pEnumerator;
IAudioSessionManager2Ptr pSessionManager;
// Create the device enumerator.
CHECK_HR(hr = CoCreateInstance(
__uuidof(MMDeviceEnumerator),
NULL, CLSCTX_ALL,
__uuidof(IMMDeviceEnumerator),
(void**)&pEnumerator));
// Get the default audio device.
CHECK_HR(hr = pEnumerator->GetDefaultAudioEndpoint(
eRender, eConsole, &pDevice));
// Get the session manager.
CHECK_HR(hr = pDevice->Activate(
__uuidof(IAudioSessionManager2), CLSCTX_ALL,
NULL, (void**)&pSessionManager));
return pSessionManager;
}
bool MuteProcess(DWORD processId) {
IAudioSessionManager2Ptr mgr = CreateSessionManager();
if (!mgr) {
return false;
}
IAudioSessionEnumeratorPtr enumerator;
if (SUCCEEDED(mgr->GetSessionEnumerator(&enumerator))) {
int sessionCount;
if (SUCCEEDED(enumerator->GetCount(&sessionCount))) {
for (int i = 0; i < sessionCount; i++) {
IAudioSessionControlPtr control;
if (SUCCEEDED(enumerator->GetSession(i, &control))) {
IAudioSessionControl2Ptr control2;
if (SUCCEEDED(control->QueryInterface(__uuidof(IAudioSessionControl2), (void**)&control2))) {
DWORD foundProcessId;
if (SUCCEEDED(control2->GetProcessId(&foundProcessId))) {
if (foundProcessId == processId) {
ISimpleAudioVolumePtr volume;
if (SUCCEEDED(control2->QueryInterface(_uuidof(ISimpleAudioVolume), (void**)&volume))) {
if (SUCCEEDED(volume->SetMute(TRUE, 0))) {
return true;
}
}
}
}
}
}
}
}
}
return false;
}
int _tmain(int argc, _TCHAR* argv[]){
CoInitialize(NULL);
DWORD processId = 11944;
MuteProcess(processId);
return 0;
}
這是可能的肯定..太糟糕[那傢伙](http://blog.nirsoft.net/2011/02/25/how-to-control-the-volume-level-of-特定的應用程序從命令行在windows-72008vista /)沒有解釋他是如何做到的。 – ThiefMaster 2013-12-06 17:10:07