TwainSetContrast Method (GdPictureImaging)

In This Topic

Tries to set the current contrast for the next acquisition.

Syntax

'Declaration

 

Public Function TwainSetContrast( _

   ByVal Contrast As Integer _

) As Boolean

public bool TwainSetContrast( 

   int Contrast

)

public function TwainSetContrast( 

    Contrast: Integer

): Boolean;

public function TwainSetContrast( 

   Contrast : int

) : boolean;

public: bool TwainSetContrast( 

   int Contrast

)

public:

bool TwainSetContrast( 

   int Contrast

)

Contrast: The TWAIN standard *says* that the range for this cap is -1000 ... +1000.

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.