TwainSetAutoScan Method (GdPictureImaging)

In This Topic

Tries to enable or disable the auto scan scanning capability. Setting this to TRUE gives the scanner permission to 'scan ahead'. i.e. to pull pages from the feeder and scan them before they have been requested. On high-speed scanners, you may have to enable auto scan to achieve the maximum scanning rate.

Syntax

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

'Declaration
 
Public Function TwainSetAutoScan( _
   ByVal AutoScan As Boolean _
) As Boolean

public bool TwainSetAutoScan( 
   bool AutoScan
)

public function TwainSetAutoScan( 
    AutoScan: Boolean
): Boolean;

public function TwainSetAutoScan( 
   AutoScan : boolean
) : boolean;

public: bool TwainSetAutoScan( 
   bool AutoScan
)

public:
bool TwainSetAutoScan( 
   bool AutoScan
)

Parameters

AutoScan: True to enable autoscan, else False.

Return Value

TRUE if successful, FALSE otherwise -> Use TwainGetLastResultCode() and TwainGetLastConditionCode() methods for diagnosing the error.

Remarks

This will fail on most flatbeds & cameras, and some 'feeder' Before using this method check that the TWAIN state is TWAIN_SOURCE_OPEN (4) To get the TWAIN state, use the TwainGetState() method.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainGetState Method
TwainIsAutoScanAvailable Method
TwainIsAutoScanEnabled Method
TwainSetAutoFeed Method
TwainStopFeeder Method