Ergebnis der Suchanfrage

• Forum: Multimedia

  AW: Get/Set Master Volume Lautstärke?

    Delphi
    by Kas Ob., 16. Okt 2023
  Interesting !
  
  Please try this
  const
  IID_IAudioEndpointVolumeEx: TGUID = '{66E11784-F695-4F28-A505-A7080081A78F}';
  
  type
  IAudioEndpointVolumeEx = interface(IAudioEndpointVolume)
  
  function GetVolumeRangeChannel(nChannel: Integer; out pflVolumeMindB: double; out
• Forum: Multimedia

  AW: Get/Set Master Volume Lautstärke?

    Delphi
    by Kas Ob., 15. Okt 2023
  Here is my full working example
  procedure TForm10.Button3Click(Sender: TObject);
  begin
  SetMasterMuteState(True);
  end;
  
  procedure TForm10.Button4Click(Sender: TObject);
  begin
  SetMasterMuteState(False);
  end;
• Forum: Multimedia

  AW: Get/Set Master Volume Lautstärke?

    Delphi
    by Kas Ob., 15. Okt 2023
  Yes you are right there.
  
  I messed that up, but in all cases the master is switching between muted and unmuted with that function, try to capture the R value.
  
  Also it seems the behavior is different on my Windows
  
  
  As you see in the Log Event first click is OK showing changing state followed by False because the state is not changed.
• Forum: Multimedia

  AW: Get/Set Master Volume Lautstärke?

    Delphi
    by Kas Ob., 15. Okt 2023
  Sure but Windows lack ability to do permissions like iOS or Android so they revert to prohibit some API without explicitly user inatraction.
  
  I was mistaken with the mute status, my old project was on specific request from a client where he wanted to control the devices in Sound Control Panel to enable and disable a device and change the Default device for both Playback and Recording, which is...
• Forum: Multimedia

  AW: Get/Set Master Volume Lautstärke?

    Delphi
    by Kas Ob., 14. Okt 2023
  My two cents on this, Mute and Enable are intentionally undocumented by Microsoft, these will compromise the user privacy, like .. by simply enabling the disabled microphone in first place, or just unmute the speakers without the user consent and play some audio.
  
  It is doable and it is not a hack, but unethical to share, so you have to ask the user himself to enable (eg. the Mic) or unmute the...