7/5/2023 0 Comments Loopback apiOn versions of Windows previous to Windows 10, this error may result if the function is called from an incorrect COM apartment, or if the passed IActivateAudioInterfaceCompletionHandler is not implemented on an agile object (aggregating a free-threaded marshaler). The underlying object and asynchronous operation were created successfully. Possible values include, but are not limited to, those in the following table. Returns an IActivateAudioInterfaceAsyncOperation interface that represents the asynchronous operation of activating the requested WASAPI interface. Starting with TBD, you can specify AUDIOCLIENT_ACTIVATION_PARAMS to activate the interface to include or exclude audio streams associated with a specified process ID.Īn interface implemented by the caller that is called by Windows when the result of the activation procedure is available. For more information, see the pActivationParams parameter in IMMDevice::Activate. Interface-specific activation parameters. The IID of a COM interface in the WASAPI family, such as IAudioClient. For sample code that demonstrates the process loopback capture scenario, see the Application Loopback API Capture Sample. Specify AUDIOCLIENT_ACTIVATION_TYPE_PROCESS_LOOPBACK to activate the audio interface for process loopback capture. Call StringFromIID to convert either of these GUIDs to an LPCWSTR to use for this argument. The GUIDs DEVINTERFACE_AUDIO_CAPTURE and DEVINTERFACE_AUDIO_RENDER represent the default audio capture and render device respectively. This is normally retrieved from a DeviceInformation object or one of the methods of the MediaDevice class. IActivateAudioInterfaceAsyncOperation **activationOperationĪ device interface ID for an audio device. IActivateAudioInterfaceCompletionHandler *completionHandler, Syntax HRESULT ActivateAudioInterfaceAsync( Module.Enables Windows Store apps to access preexisting Component Object Model (COM) interfaces in the WASAPI family. Comment the default root configuration from the following file:.To create a static HTML page, perform the following: To run the application, use the below command: $ node server.js To create a model, use the below command: $ slc loopback:model Running Application Other backend services such as REST APIs, SOAP web services, and storage services, and so on are generalized as data sources. The models are connected to databases via data sources providing create, retrieve, update, and delete (CRUD) functions. To connect to the database such as MySQL/MongoDB, use the below command: $ npm install loopback-connector-mongodb–save Creating a Model To create an application, use the below command: $ slc loopbackĪccept the default selection api-server to create the application. In this section, let us discuss creating a sample project. To install using StrongLoop, use the below command: $ sudo npm install -g strongloop Creating a Sample Project LoopBack can be installed using either API Connect or StrongLoop. In this blog post, let us discuss building a RESTful API using LoopBack and accessing data from MongoDB. It allows you to create your basic routes on adding a model into the application.ĭata can be accessed from multiple databases such as MySQL, MongoDB, Oracle, MS SQL, PostgreSQL, and so on. LoopBack, an easy to learn and understand open-source Node.js framework, allows you to create end-to-end REST APIs with less code compared to Express and other frameworks.
0 Comments
Leave a Reply. |