TwainGetState Method (GdPictureImaging)

In This Topic

Gets the recent TWAIN state of the currently executed TWAIN session.

The TWAIN protocol defines seven states that exist in the TWAIN session in order to ensure the session is executed correctly. For more details on TWAIN states, please refer to the TWAIN Specification.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function TwainGetState() As TwainStatus

public TwainStatus TwainGetState()

public function TwainGetState(): TwainStatus;

public function TwainGetState() : TwainStatus;

public: TwainStatus TwainGetState();

public:
TwainStatus TwainGetState();

Return Value

A member of the TwainStatus enumeration. The current TWAIN state of the on-going TWAIN session.

Remarks

Be aware that this is not the error status of the last executed TWAIN operation. For further explanation please refer to the example below.

Just to inform you that you can try the TWAIN functionality using one of TWAIN demo projects available in your installation folder.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainGetLastResultCode Method
TwainGetLastConditionCode Method
TwainSelectSource(Int32) Method
TwainOpenDefaultSource(Int32) Method
TwainCloseSource Method