TwainExceptionCode Enumeration

Summary

Used as a value for TwainException.Code property.

Syntax

C++/CLI

Python

public enum TwainExceptionCode

public enum class TwainExceptionCode

class TwainExceptionCode(Enum): 
   CapabilitySequenceError = -589 
   CapabilityBadOperation = -588 
   StopScan = -587 
   CheckDeviceOnline = -586 
   FileWriteError = -585 
   PaperDoubleFeed = -584 
   PaperJam = -583 
   NotEmpty = -582 
   FileNotFound = -581 
   FileExists = -580 
   Denied = -579 
   CustomBase = -578 
   InvalidAccessRight = -577 
   NotValidFile = -576 
   ReadFromFile = -575 
   InvalidVersionNumber = -574 
   WriteToFile = -573 
   InvalidHandle = -572 
   OpenFile = -571 
   CapabilityNegotiationNotEnded = -570 
   InvalidState = -569 
   BadValue = -568 
   SourceNotOpen = -567 
   CapabilityNotSupported = -566 
   EndOfList = -565 
   CheckStatus = -564 
   NotInitialized = -562 
   InvalidDll = -561 
   NoTwainLibrary = -560 
   Cancel = -90 
   BadProtocol = -86 
   OperationError = -84 
   MaxConnections = -83 
   NoDataSource = -82 
   LowMemory = -81 
   FailureUnknown = -80

Members

Value	Member	Description
-589	CapabilitySequenceError	Capability has dependency on other capability
-588	CapabilityBadOperation	Operation not supported by capability
-587	StopScan	The feeder is stopped by the user
-586	CheckDeviceOnline	The device has been powered off
-585	FileWriteError	Error writing to the specified file
-584	PaperDoubleFeed	Transfer failed because of a feeder error
-583	PaperJam	Transfer failed because of a feeder error
-582	NotEmpty	Directory is not empty and can not be deleted
-581	FileNotFound	Input file name not found or output file name invalid
-580	FileExists	Specified output file name already exists
-579	Denied	Operation denied (device not ready)
-578	CustomBase	Custom return code base
-577	InvalidAccessRight	Invalid access right to file
-576	NotValidFile	Invalid file
-575	ReadFromFile	Error reading from file
-574	InvalidVersionNumber	Invalid version number
-573	WriteToFile	Error trying write to a file
-572	InvalidHandle	Invalid handle was passed
-571	OpenFile	Can't open required file
-570	CapabilityNegotiationNotEnded	Capability negotiation ended before the current operation
-569	InvalidState	TWAIN source state is not valid for the required operation
-568	BadValue	Invalid capability value
-567	SourceNotOpen	TWAIN source not being open
-566	CapabilityNotSupported	Required capability not supported
-565	EndOfList	End of the enumeration list
-564	CheckStatus	An error in the status of the TWAIN source
-562	NotInitialized	TWAIN source not initialized
-561	InvalidDll	Invalid DLL
-560	NoTwainLibrary	No Twain Library
-90	Cancel	Operation was cancelled
-86	BadProtocol	Unrecognized MSG DG DAT combination
-84	OperationError	Source or Source Manager reported an error to the user and handled the error; no application action required.
-83	MaxConnections	Data source is connected to maximum possible applications
-82	NoDataSource	No Data Source
-81	LowMemory	Not enough memory to perform operation
-80	FailureUnknown	Failure due to unknown cause

Requirements

Target Platforms

Reference

Leadtools.Twain Namespace

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Help Version 22.0.2023.3.31

Leadtools.Twain Assembly

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