Reference Guide
GdPicture14 Namespace / GdPictureImaging Class / TwainGetCapCurrentNumeric Method
A member of the TwainCapabilities enumeration.
Returns the current value of the specified TWAIN capability.





In This Topic
    TwainGetCapCurrentNumeric Method (GdPictureImaging)
    In This Topic
    Returns as numeric, the current value of a TWAIN capability.
    Syntax
    'Declaration
     
    
    Public Function TwainGetCapCurrentNumeric( _
       ByVal Cap As TwainCapabilities, _
       ByRef CurrentValue As Double _
    ) As Boolean
    public bool TwainGetCapCurrentNumeric( 
       TwainCapabilities Cap,
       ref double CurrentValue
    )
    public function TwainGetCapCurrentNumeric( 
        Cap: TwainCapabilities;
       var  CurrentValue: Double
    ): Boolean; 
    public function TwainGetCapCurrentNumeric( 
       Cap : TwainCapabilities,
       CurrentValue : double
    ) : boolean;
    public: bool TwainGetCapCurrentNumeric( 
       TwainCapabilities Cap,
       ref double CurrentValue
    ) 
    public:
    bool TwainGetCapCurrentNumeric( 
       TwainCapabilities Cap,
       double% CurrentValue
    ) 

    Parameters

    Cap
    A member of the TwainCapabilities enumeration.
    CurrentValue
    Returns the current value of the specified 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. This method can be used to retrieve the following types of capabilities: TWTY_INT8 , TWTY_INT16, TWTY_INT32, TWTY_UINT8, TWTY_UINT16, TWTY_UINT32, TWTY_BOOL, TWTY_FIX32, TWTY_FRAME. You can determine the type of each TWAIN capability using the TwainGetCapItemType method or looking the twain references from http://www.twain.org
    See Also