TwainSetCapCurrentNumeric Method (GdPictureImaging)

In This Topic

Changes the current value of a TWAIN capability from a numeric value. The TwainGetAvailableCapValueNoNumeric() method should be used to determine what are the supported value which can be used with this method.

Syntax

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

'Declaration
 
Public Function TwainSetCapCurrentNumeric( _
   ByVal Cap As TwainCapabilities, _
   ByVal ItemType As TwainItemTypes, _
   ByVal NewValue As Double _
) As Boolean

public bool TwainSetCapCurrentNumeric( 
   TwainCapabilities Cap,
   TwainItemTypes ItemType,
   double NewValue
)

public function TwainSetCapCurrentNumeric( 
    Cap: TwainCapabilities;
    ItemType: TwainItemTypes;
    NewValue: Double
): Boolean;

public function TwainSetCapCurrentNumeric( 
   Cap : TwainCapabilities,
   ItemType : TwainItemTypes,
   NewValue : double
) : boolean;

public: bool TwainSetCapCurrentNumeric( 
   TwainCapabilities Cap,
   TwainItemTypes ItemType,
   double NewValue
)

public:
bool TwainSetCapCurrentNumeric( 
   TwainCapabilities Cap,
   TwainItemTypes ItemType,
   double NewValue
)

Parameters

Cap: A member of the TwainCapabilities enumeration.
ItemType: A member of the TwainItemTypes enumeration.You can determine the type of each TWAIN capability using the TwainGetCapItemType method or looking the twain references from http://www.twain.org.
NewValue: New value (as numeric) to set to the selected TWAIN capability.

Return Value

True if success, else False -> Use TwainGetLastResultCode() and TwainGetLastConditionCode() methods for diagnosing the error.

Remarks

Before using this method check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN) To get the TWAIN state, use the TwainGetState() method.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainGetCapItemType Method
TwainGetState Method
TwainGetAvailableCapValuesCount Method
TwainGetAvailableCapValueNoNumeric Method
TwainGetCapCurrentNumeric Method