IUPnPServiceAsync interface (upnp.h)
Use this interface to asynchronously query state variables and invoke actions on an instance of a service .
This interface can be obtained through a QueryInterface off the IUPnPService object.
Inheritance
The IUPnPServiceAsync interface inherits from the IUnknown interface. IUPnPServiceAsync also has these types of members:
Methods
The IUPnPServiceAsync interface has these methods.
| IUPnPServiceAsync::BeginInvokeAction BeginInvokeAction method invokes an action on a device in asynchronous mode. Additionally, if a delayed SCPD download and event subscription is opted-in, and it has not taken place already, this method will initiate SCPD download. |
| IUPnPServiceAsync::BeginQueryStateVariable BeginQueryStateVariable method initiates an asynchronous request for the state variable value from a specific service. |
| IUPnPServiceAsync::BeginSCPDDownload BeginSCPDDownload method initiates the asynchronous download of an Service Control Protocol Description (SCPD) document. |
| IUPnPServiceAsync::BeginSubscribeToEvents BeginSubscribeToEvents initiates event subscription in asynchronous mode and registers the application callback with the UPnP framework. |
| IUPnPServiceAsync::CancelAsyncOperation CancelAsyncOperation method cancels a pending asynchronous operation initiated by the BeginInvokeAction, BeginQueryStateVariable, BeginSubscribeToEvents, or BeginSCPDDownload methods. |
| IUPnPServiceAsync::EndInvokeAction EndInvokeAction method retrieves the results of a previous BeginInvokeAction operation and retrieves the resultant output arguments. |
| IUPnPServiceAsync::EndQueryStateVariable EndQueryStateVariable method retrieves the results of a previous BeginQueryStateVariable operation and retrieves the resultant service-specific state variable value. |
| IUPnPServiceAsync::EndSCPDDownload EndSCPDDownload method retrieves the results of a previous asynchronous download of an Service Control Protocol Description (SCPD) document. |
| IUPnPServiceAsync::EndSubscribeToEvents EndSubscribeToEvents method retrieves the results of a previous BeginSubscribeToEvents operation. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 [desktop apps only] |
| Minimum supported server | Windows Server 2012 [desktop apps only] |
| Target Platform | Windows |
| Header | upnp.h |
See also
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