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main.cpp
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main.cpp
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#include <Windows.h>
#include <mmdeviceapi.h>
#include <endpointvolume.h>
bool success = false;
float Volume = 0;
extern "C" bool SetVolume(int vol) {
HRESULT hr = CoInitialize(NULL);
if (hr == S_OK) {
IMMDeviceEnumerator* pIMMDeviceEnumerator = NULL;
hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IMMDeviceEnumerator), (LPVOID*)&pIMMDeviceEnumerator);
if (hr == S_OK) {
IMMDevice* defaultDevice = NULL;
hr = pIMMDeviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &defaultDevice);
pIMMDeviceEnumerator->Release();
pIMMDeviceEnumerator = NULL;
if (hr == S_OK) {
IAudioEndpointVolume* EndPointVolume = NULL;
hr = defaultDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL, (LPVOID*)&EndPointVolume);
defaultDevice->Release();
float Volume = vol / 100;
hr = EndPointVolume->SetMasterVolumeLevelScalar(Volume, NULL);
if (hr == S_OK) success = true;
EndPointVolume->Release();
EndPointVolume = NULL;
}
CoUninitialize();
}
}
return success;
}
extern "C" int GetVolume() {
HRESULT hr = CoInitialize(NULL);
if (hr == S_OK) {
IMMDeviceEnumerator* pIMMDeviceEnumerator = NULL;
hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IMMDeviceEnumerator), (LPVOID*)&pIMMDeviceEnumerator);
if (hr == S_OK) {
IMMDevice* defaultDevice = NULL;
hr = pIMMDeviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &defaultDevice);
pIMMDeviceEnumerator->Release();
pIMMDeviceEnumerator = NULL;
if (hr == S_OK) {
IAudioEndpointVolume* EndPointVolume = NULL;
hr = defaultDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL, (LPVOID*)&EndPointVolume);
defaultDevice->Release();
hr = EndPointVolume->GetMasterVolumeLevelScalar(&Volume);
if (hr == S_OK) success = true;
EndPointVolume->Release();
EndPointVolume = NULL;
}
CoUninitialize();
}
}
return (int)(Volume * 100);
}