![]() ![]() For example, a client can get the default console playback device by making the following call: This method retrieves the default endpoint device for the specified data-flow direction (rendering or capture) and role. For more information, see Device Roles in Windows Vista. Thus, the behavior of an audio application developed to run in Windows Vista might change when run in a future version of Windows. In that case, the selection of a rendering or capture device by GetDefaultAudioEndpoint might depend on the role parameter. In a future version of Windows, the user interface might enable the user to assign individual roles to different devices. ![]() Thus, GetDefaultAudioEndpoint always selects the default rendering or capture device, regardless of which role is indicated by the role parameter. When the user changes the default rendering or capture device, the system assigns all three device roles (eConsole, eMultimedia, and eCommunications) to that device. The user interface in Windows Vista enables the user to select a default audio device for rendering and a default audio device for capture. In Windows Vista, the MMDevice API supports device roles but the system-supplied user interface programs do not. Parameter dataFlow or role is out of range. If it fails, possible return codes include, but are not limited to, the values shown in the following table. If the GetDefaultAudioEndpoint call fails, *ppDevice is NULL. The caller is responsible for releasing the interface, when it is no longer needed, by calling the interface's Release method. Through this method, the caller obtains a counted reference to the interface. Pointer to a pointer variable into which the method writes the address of the IMMDevice interface of the endpoint object for the default audio endpoint device. The caller should set this parameter to one of the following ERole enumeration values: The data-flow direction for a capture device is eCapture. The data-flow direction for a rendering device is eRender. The caller should set this parameter to one of the following two EDataFlow enumeration values: The data-flow direction for the endpoint device. I can then put that shortcut in my StartUp folder so that it will run when I login.The GetDefaultAudioEndpoint method retrieves the default audio endpoint for the specified data-flow direction and role. ![]() cmd file and provide a parameter for the desired volume level. This allows me to configure a Windows shortcut to the. Powershell \setvol.ps1 50 to set the volume to 50%, but I chose to create a. This could easily be called by running a command from the command line, like: Int GetDefaultAudioEndpoint(int dataFlow, int role, out IMMDevice endpoint) Int Activate(ref System.Guid id, int clsCtx, int activationParams, out IAudioEndpointVolume aev) Int SetMute( bool bMute, System.Guid pguidEventContext) Int GetMasterVolumeLevelScalar(out float pfLevel) Int SetMasterVolumeLevelScalar(float fLevel, System.Guid pguidEventContext) I found this blog post with a very convenient way of doing it.įirst, run this to get access to the audio API: Add-Type -TypeDefinition SendKeys stopped working for me in Windows 10 (it literally types digits where my caret is). ![]()
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