HttpRequest
class that's defined in Walkthrough: Connecting Using Tasks and XML HTTP Requests in the context of a complete UWP app.IDispatch
)ComPtr
to declare a variable that can access the members of an object that's derived from the interface. ComPtr
automatically maintains a reference count for the underlying interface pointer and releases the interface when the reference count goes to zero.RuntimeClass
object can provide a combination of support for one or more Windows Runtime COM interfaces, or a weak reference to a component.Module
object manages class factories, which create objects, and registration, which enables other applications to use an object.Callback
function to write asynchronous operations.EventSource
to add, remove, and invoke delegates.FtmBase
creates a global interface table (GIT), and helps manage marshaling and proxy objects.WeakRef
object can be used by only the Windows Runtime, and not by classic COM.WeakRef
object typically represents an object whose existence is controlled by an external thread or application. For example, a WeakRef
object can reference a file object. When the file is open, the WeakRef
is valid and the referenced file is accessible. But when the file is closed, the WeakRef
is invalid and the file is not accessible.