Observable.FromAsyncPattern(Of T1, T2, T3, TResult) Method (Func(Of T1, T2, T3, AsyncCallback, Object, IAsyncResult), Func(Of IAsyncResult, TResult))

Converts a Begin/End invoke function pair into an asynchronous function.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

'Declaration
Public Shared Function FromAsyncPattern(Of T1, T2, T3, TResult) ( _
	begin As Func(Of T1, T2, T3, AsyncCallback, Object, IAsyncResult), _
	end As Func(Of IAsyncResult, TResult) _
) As Func(Of T1, T2, T3, IObservable(Of TResult))
'Usage
Dim begin As Func(Of T1, T2, T3, AsyncCallback, Object, IAsyncResult)
Dim end As Func(Of IAsyncResult, TResult)
Dim returnValue As Func(Of T1, T2, T3, IObservable(Of TResult))

returnValue = Observable.FromAsyncPattern(begin, _
	end)

Type Parameters

T1

The first type of function.

T2

The second type of function.

T3

The third type of function.

TResult

The type of result.

Parameters

begin
Type: System.Func(Of T1, T2, T3, AsyncCallback, Object, IAsyncResult)
The begin invoke function.
end
Type: System.Func(Of IAsyncResult, TResult)
The end invoke function.

Return Value

Type: System.Func(Of T1, T2, T3, IObservable(Of TResult))
A Begin/End invoke function pair.
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