IOperation |
Allows to add custom markup to the document header and footer or abort the operation by throwing OperationCanceledException. Refer to Document for description of document extension.
Namespace: Resto.Front.Api
Assembly: Resto.Front.Api.V8 (in Resto.Front.Api.V8.dll)
SyntaxC#
IDisposable RegisterBeforePrintDocumentHandler( Func<(Guid printingDeviceId, Document documentMarkup), TextDocumentExtensions> callback )
Parameters
- callback FuncValueTupleGuid, Document, TextDocumentExtensions
- Callback to return document extensions or abort the operation by throwing OperationCanceledException.
Return Value
IDisposableRemarks
Error message in the left top corner of the screen will not be shown if printing is aborted.
See Also