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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 31%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Hi,
I want to enable/disable audio devices listed in sound control panel (mmsys.cpl) but either through programmatically or through any power shell commands/scripts or windows internal utilities(pnputil, devcon).
I tried using WMI APIs, Core Audio APIs, pnputil, devcon utilities. But with any of these I am either able to enable/disable an audio endpoint from (AudioEndpoint class) or a media device (Media class). None of these provide similar behavior what we get when disabling audio device through right clicking on it in sound control panel.
Observations:
I want to achieve this observation (3) through program or commands.
Please suggest how to do it.
Thanks.
If you want to disable a sound device like in the Sound Control Panel, it is done with IPolicyConfig and SetEndpointVisibility
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(179.20000000000002, 34%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXY%3C/text%3E%3C/svg%3E)
@Ramashankar Agrahari (India), there is an example you can refer to.
Hi Castorix31 and Xiaopo Yang,
Thanks for your quick reply and suggestion.
Earlier, I had used the Setup APIs (SetupDiGetClassDevs, SetupDiEnumDeviceInfo) to enumerate all devices of class guid 'Media' and 'AudioEndpoint', and then used CM_Enable_DevNode and CM_Disable_DevNode APIs to enable/disable those devices.
Though it was enabling/disabling devices successfully, but the result (observation 1,2 above) was not same as what we get by disabling the audio device from sound control panel (observation 3).
I will now explore these (SetupDiSetClassInstallParams + SetupDiCallClassInstaller) APIs also and test the behavior again.
Thanks.
@Ramashankar Agrahari (India), Is there any update about the issue? You can see DICS_DISABLE for more information.
Hi Castorix31 and Xiaopo Yang,
I tried this (SetupDiSetClassInstallParams + SetupDiCallClassInstaller) with DICS_DISABLE but unfortunately it is also working in same manner. That is,
However, I want to achieve this behavior programmatically (refer image3.png) where devices are shown disabled in sound control panel.
PS: Same problematic behavior is also explained well in this thread in detail.
[EDIT:] Images were not getting attached in this comment itself, so I added them as a new comment in this thread]
Here is the sample code I used:
#include <SetupAPI.h>
#include <iostream>
#include <initguid.h> // Include for initializing GUIDs
#include <devguid.h> // Include for device class GUIDs
#pragma comment(lib, "Setupapi.lib")
const GUID GUID_DEVCLASS_AUDIOENDPOINT =
{ 0xc166523cL, 0xfe0c, 0x4a94, 0xa5, 0x86, 0xf1, 0xa8, 0x0c, 0xfb, 0xbf, 0x3e };
//GUID audioClassGuid = GUID_DEVCLASS_AUDIOENDPOINT;
GUID audioClassGuid = GUID_DEVCLASS_MEDIA;
int ChangeDeviceState(bool bEnable) {
// Get device information set for audio devices
HDEVINFO devInfo = SetupDiGetClassDevs(&audioClassGuid, NULL, NULL, DIGCF_PRESENT);
if (devInfo == INVALID_HANDLE_VALUE) {
std::cerr << "Failed to get device information set." << std::endl;
return 1;
}
// Enumerate all audio devices and disable them
SP_DEVINFO_DATA devInfoData;
ZeroMemory(&devInfoData, sizeof(devInfoData));
devInfoData.cbSize = sizeof(devInfoData);
for (DWORD i = 0; SetupDiEnumDeviceInfo(devInfo, i, &devInfoData); ++i) {
// Set class installation parameters to disable the device
SP_PROPCHANGE_PARAMS propChangeParams;
ZeroMemory(&propChangeParams, sizeof(propChangeParams));
propChangeParams.ClassInstallHeader.cbSize = sizeof(SP_CLASSINSTALL_HEADER);
propChangeParams.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;
propChangeParams.Scope = DICS_FLAG_GLOBAL;
if (bEnable) {
propChangeParams.StateChange = DICS_ENABLE;
}
else {
propChangeParams.StateChange = DICS_DISABLE;
}
propChangeParams.HwProfile = 0;
if (!SetupDiSetClassInstallParams(devInfo, &devInfoData, &propChangeParams.ClassInstallHeader, sizeof(propChangeParams))) {
std::cerr << "Failed to set class installation parameters for disabling the device." << std::endl;
continue;
}
// Call class installer to disable the device
if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, devInfo, &devInfoData)) {
std::cerr << "Failed to call class installer to disable the device." << std::endl;
continue;
}
std::cout << "Audio device status changed successfully." << std::endl;
// Increment the size of the structure for the next iteration
devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
}
// Clean up
SetupDiDestroyDeviceInfoList(devInfo);
return 0;
}
int main() {
ChangeDeviceState(false);
ChangeDeviceState(true);
}
Hi Castorix31,
I will check this also and update here. Thanks.
@Ramashankar Agrahari (India), have you solved the issue? May you need an incident?
Hi,
I could not get time to check it in last week due to some critical work. Will check it in this week and update.
@Ramashankar Agrahari (India), any update about the question?
Hi Castorix31 and Xiaopo Yang,
Yes, it worked. I tried SetEndpointVisibility() today and it worked perfectly the way I wanted.
Thank you very much for your help.
One more query:
Is there something similar for camera device also where only camera's availability can be controlled? Though I could enable/disable them using pnputil but it is enabling/disabling it completely in device manager.
Accepted answer:
Castorix31 • Mar 19, 2024, 5:43 PM
If you want to disable a sound device like in the Sound Control Panel, it is done with IPolicyConfig and SetEndpointVisibility
@Ramashankar Agrahari (India), could you please mark answer for the completion of this question?
Done.