Returns the number of transfers the Source is ready to supply, upon demand. This is a runtime, read-only property.
Namespace: Dynamsoft.DotNet.TWAINAssembly: DynamicDotNetTWAIN (in DynamicDotNetTWAIN.dll) Version: 3.0.0.0 (3.0.0.0)
Syntax
Remarks
This property is valid only in OnPostTransfer event.
The Data Source returns -1 if it is not sure how many transfers are pending. Scanners with ADF (Automatic Document Feeder) will typically return -1 if the current image is not the last one.
Exceptions
| Exception | Condition |
|---|---|
| Dynamsoft.DotNet.TWAIN..::..TwainException | When an error occurs and IfThrowException property is true, an exception will be thrown. When IfThrowException property is false, please check ErrorCode and ErrorString. |