Tip
See the Examples section of the AsyncHelper
class for details about how to create a context for possibly async top level methods.
public static bool FillPath(
this IReadWriteBitmapData bitmapData,
IAsyncContext? context,
Brush brush,
Path path,
DrawingOptions? drawingOptions = null
)<ExtensionAttribute>
Public Shared Function FillPath (
bitmapData As IReadWriteBitmapData,
context As IAsyncContext,
brush As Brush,
path As Path,
Optional drawingOptions As DrawingOptions = Nothing
) As Booleanpublic:
[ExtensionAttribute]
static bool FillPath(
IReadWriteBitmapData^ bitmapData,
IAsyncContext^ context,
Brush^ brush,
Path^ path,
DrawingOptions^ drawingOptions = nullptr
)[<ExtensionAttribute>]
static member FillPath :
bitmapData : IReadWriteBitmapData *
context : IAsyncContext *
brush : Brush *
path : Path *
?drawingOptions : DrawingOptions
(* Defaults:
let _drawingOptions = defaultArg drawingOptions null
*)
-> bool If the Transformation property of drawingOptions is not the identity matrix, then the path region is not cached, even if PreferCaching is enabled. To improve the performance of filling transformed paths repeatedly, apply the transformations to the path instance instead, and use the identity matrix in drawingOptions.
This method blocks the caller thread, but if context belongs to an async top level method, then the execution may already run on a pool thread. Degree of parallelism, the ability of cancellation and reporting progress depend on how these were configured at the top level method. To reconfigure the degree of parallelism of an existing context, you can use the AsyncContextWrapper class.
Alternatively, you can use this method to specify the degree of parallelism for synchronous execution. For example, by passing AsyncHelper.SingleThreadContext to the context parameter the method will be forced to use a single thread only.
When reporting progress, this library always passes a DrawingOperation instance to the generic methods of the IAsyncProgress interface.
| ArgumentNullException | bitmapData, brush, or path is . |
| OverflowException | The coordinates (after a possible transformation specified in drawingOptions) are outside the bounds of an int value. |