[Interest] Issues when requesting access to use the Microphone on macOS

[Tor Arne Vestbø]

Hi,

On macOS we selectively link in the relevant permission plugins based on what you’ve declared in your Info.plist.
This magic depend on using the qt_ prefixed function for adding your executable:

https://doc.qt.io/qt-6/qt-add-executable.html

Cheers,
Tor Arne

On 8 May 2024, at 16:44, Sley HORTES <sleyhortes13 at gmail.com> wrote:

Hello All, Hope You are doing fine.

I am all new to Qt and this email is  concerning an issue that I have had lately regarding a chat application which requests access to use the Microphone.

I have read the Documentation on how to handle it. I have written exactly what they said but I didn’t receive the popup message which request access to the microphone. The function where I tried to do so is below, the Info.plist file command along with the terminal message that is prompted when trying to use it.

Function:

void client_chat_window::start_recording()
{
QMicrophonePermission microphonePermission;

switch (qApp->checkPermission(microphonePermission))
{
case Qt::PermissionStatus::Undetermined:
qApp->requestPermission(microphonePermission, this, [=]()
{ qDebug() << "Undetermined: Microphone permission granted!"; });

std::cout << std::endl;
break;

case Qt::PermissionStatus::Denied:
qApp->requestPermission(microphonePermission, this, [=]()
{ qDebug() << "Asking permission within the Denied case"; });

qWarning("Denied: Microphone permission is not granted!");
std::cout << std::endl;
break;

case Qt::PermissionStatus::Granted:
QMediaCaptureSession session;

QAudioInput audioInput;
session.setAudioInput(&audioInput);

QMediaRecorder recorder;
session.setRecorder(&recorder);

recorder.setQuality(QMediaRecorder::HighQuality);
recorder.setOutputLocation(QUrl::fromLocalFile("test.mp3"));
recorder.record();
qDebug() << "Recording started!";

std::cout << std::endl;
break;
}
}


Within the Info.plist, I've written this:
<key>NSMicrophoneUsageDescription</key>
<string>We need access to your microphone to record audio for voice chat.</string>


CMakeLists.txt file related to the app:
add_executable(client
client_main.cpp
client_main_window.cpp
client_manager.cpp
client_chat_window.cpp
chat_protocol.cpp
chat_line.cpp
)
target_link_libraries(client PRIVATE database_library)

qt_add_resources(client "images"
PREFIX "/images"
FILES send_icon.png
)

set(MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/Info.plist)

set_target_properties(client PROPERTIES MACOSX_BUNDLE ON)



Terminal Message:
qt.permissions: Could not find permission plugin for QMicrophonePermission. Please make sure you have included the required usage description in your Info.plist

I really Hope That You will spot where I went wrong and give me an hint on how to solve it.
Thanks.




On May 5, 2024, at 5:59 AM, interest-request at qt-project.org wrote:

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