weird Behaviour of QAudioDeviceInfo

QtCoder87

My Setting:
I am coding on Visual Studio 2019 with Qt Addin. I am debugging with Visual Studio too.

Now for Testing my Network communication I have copied the programm to TEMP\Debug including Platform.
the second Instance is working except of QAudioDeviceInfo .

so there are two Applications running one from VSSolution\x64\Debug\MyProgramm.exe

c:\TEMP\Debug\MyProgramm.exe

QAudioDeviceInfo::availableDevices(QAudio::Mode::AudioInput) and AudioOutput

on Debug with Visual Studio it lists all my Devices. But if I start it outside Visual Studio or Debug the exe with Visual Studio (c:\Temp\Debug\MyProgramm.exe) it shows nothing.

The List all VideoDevices WinApi Code I found on StackOverflow works on both.

File List of VSSolution Debug

11.06.2020  12:16         9.712.128 botan.dll
06.06.2020  13:26           135.168 FileIO.dll
03.07.2020  19:12                 0 filelist_vs.txt
17.06.2020  20:25           363.008 KoalaDNS.dll
07.06.2020  18:14           215.552 KoalaMultimediaDevices.dll
05.04.2020  22:50           230.400 KoalaSocket.dll
30.06.2020  21:12           568.832 KoalaSSH.dll
03.07.2020  18:55         7.633.920 KSecureDesktopQT.exe
03.07.2020  18:05            10.924 KSecureDesktopQT.exp
03.07.2020  18:55        43.482.924 KSecureDesktopQT.ilk
30.06.2020  21:11            18.818 KSecureDesktopQT.lib
03.07.2020  18:55        43.290.624 KSecureDesktopQT.pdb
27.06.2020  14:10            78.848 KSecureWidgetDaemon.exe
27.06.2020  14:10           701.520 KSecureWidgetDaemon.ilk
27.06.2020  14:10         1.462.272 KSecureWidgetDaemon.pdb
02.06.2020  03:59         2.153.472 libcrypto-1_1.dll
02.06.2020  03:59           499.712 libssl-1_1.dll
03.04.2020  14:46       112.750.080 opencv_world430d.dll
28.06.2020  12:20            99.840 pthreadVC3d.dll
08.06.2020  13:31         1.897.472 sqlite3-64.dll
08.06.2020  13:27         1.947.136 sqlite3.dll
28.06.2020  12:27         1.632.768 ssh.dll
06.06.2020  20:43           376.878 testsound.wav
14.06.2020  22:46           151.040 TinyProcess.dll
28.06.2020  23:03           292.864 Utils.dll

Filelist c:\temp\debug\

03.07.2020  19:14    <DIR>          .
03.07.2020  19:14    <DIR>          ..
11.06.2020  12:16         9.712.128 botan.dll
03.07.2020  16:04            16.808 dede.utf32
06.06.2020  13:26           135.168 FileIO.dll
03.07.2020  19:14                 0 filelist_temp.txt
03.07.2020  13:58               450 friends.list
17.06.2020  20:25           363.008 KoalaDNS.dll
07.06.2020  18:14           215.552 KoalaMultimediaDevices.dll
05.04.2020  22:50           230.400 KoalaSocket.dll
30.06.2020  21:12           568.832 KoalaSSH.dll
03.07.2020  18:55         7.633.920 KSecureDesktopQT.exe
20.06.2020  15:08            10.924 KSecureDesktopQT.exp
20.06.2020  16:52        44.308.484 KSecureDesktopQT.ilk
17.06.2020  09:26            18.818 KSecureDesktopQT.lib
20.06.2020  16:52        48.533.504 KSecureDesktopQT.pdb
26.06.2020  16:45             1.255 KSecureDesktopQT.sln
02.06.2020  03:59         2.153.472 libcrypto-1_1.dll
02.06.2020  03:59           499.712 libssl-1_1.dll
03.07.2020  18:07             1.087 main.conf
03.04.2020  14:46       112.750.080 opencv_world430d.dll
20.06.2020  17:05    <DIR>          platforms
28.06.2020  12:20            99.840 pthreadVC3d.dll
11.05.2020  10:46        12.950.648 Qt5Cored.dll
11.05.2020  10:47        17.456.760 Qt5Guid.dll
11.05.2020  17:44         1.984.632 Qt5Multimediad.dll
11.05.2020  10:47         4.303.992 Qt5Networkd.dll
11.05.2020  10:47        11.992.696 Qt5Widgetsd.dll
08.06.2020  13:31         1.897.472 sqlite3-64.dll
08.06.2020  13:27         1.947.136 sqlite3.dll
28.06.2020  12:27         1.632.768 ssh.dll
06.06.2020  20:43           376.878 testsound.wav
14.06.2020  22:46           151.040 TinyProcess.dll
22.06.2020  13:30            20.520 users.cdb
08.06.2020  10:56            20.480 users.db
28.06.2020  23:03           292.864 Utils.dll
              33 Datei(en),    282.281.328 Bytes

 Verzeichnis von c:\TEMP\Debug\.vs

20.06.2020  17:13    <DIR>          KSecureDesktopQT
               0 Datei(en),              0 Bytes



 Verzeichnis von c:\TEMP\Debug\platforms

20.06.2020  17:05    <DIR>          .
20.06.2020  17:05    <DIR>          ..
11.05.2020  10:47         1.559.160 qdirect2d.dll
14.05.2020  06:41        21.614.592 qdirect2d.pdb
11.05.2020  10:47         4.792.952 qdirect2dd.dll
14.05.2020  06:41        25.088.000 qdirect2dd.pdb
11.05.2020  10:47           845.432 qminimal.dll
14.05.2020  06:41         7.081.984 qminimal.pdb
11.05.2020  10:47         1.924.216 qminimald.dll
14.05.2020  06:41         7.122.944 qminimald.pdb
11.05.2020  10:47           752.248 qoffscreen.dll
14.05.2020  06:41         6.041.600 qoffscreen.pdb
11.05.2020  10:47         1.682.040 qoffscreend.dll
14.05.2020  06:41         5.992.448 qoffscreend.pdb
11.05.2020  17:41           564.344 qwebgl.dll
14.05.2020  06:39         8.179.712 qwebgl.pdb
11.05.2020  17:41         1.436.280 qwebgld.dll
14.05.2020  06:39         9.449.472 qwebgld.pdb
11.05.2020  10:47         1.493.624 qwindows.dll
14.05.2020  06:41        20.557.824 qwindows.pdb
11.05.2020  10:47         4.576.376 qwindowsd.dll
14.05.2020  06:41        23.777.280 qwindowsd.pdb
              20 Datei(en),    154.532.528 Bytes

What am I missing? I have not included the hidden vs folder VS created while debugging the exe

SGaist

Hi,

You did not deploy your application properly. At least the multimedia module plugins are missing.

QtCoder87

thanks,

but one question to windeploy can I say that windeploy moves the file to c:\my_custom_path\ ?

SGaist

Copy your executable there and then call windeployqt from that folder.