IOperationServiceRegisterBeforePrintDocumentHandler Method |
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.V7 (in Resto.Front.Api.V7.dll)
SyntaxC#
IDisposable RegisterBeforePrintDocumentHandler( Func<(Guid printingDeviceId, Document documentMarkup), TextDocumentExtensions> callback )
Parameters
- callback
- Type: SystemFuncValueTupleGuid, Document, TextDocumentExtensions
Callback to return document extensions or abort the operation by throwing OperationCanceledException.
Return Value
Type: IDisposableRemarks
Error message in the left top corner of the screen will not be shown if printing is aborted.
See Also