IPreviewServiceSetPreviewAreaAsync - метод

Function SetPreviewAreaAsync ( 
	x As Integer,
	y As Integer,
	width As Integer,
	height As Integer,
	Optional cancellationToken As CancellationToken = Nothing
) As ValueTask

ValueTask SetPreviewAreaAsync(
	int x, 
	int y, 
	int width, 
	int height, 
	CancellationToken cancellationToken = CancellationToken()
)

abstract SetPreviewAreaAsync : 
        x : int * 
        y : int * 
        width : int * 
        height : int * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask