TwainSetImageLayout Method (GdPictureImaging)

In This Topic

Specifies the physical area (a rectangle) to be acquired during the next image transfer.

Syntax

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

'Declaration

 

Public Function TwainSetImageLayout( _

   ByVal Left As Double, _

   ByVal Top As Double, _

   ByVal Right As Double, _

   ByVal Bottom As Double _

) As Boolean

public bool TwainSetImageLayout( 

   double Left,

   double Top,

   double Right,

   double Bottom

)

public function TwainSetImageLayout( 

    Left: Double;

    Top: Double;

    Right: Double;

    Bottom: Double

): Boolean;

public function TwainSetImageLayout( 

   Left : double,

   Top : double,

   Right : double,

   Bottom : double

) : boolean;

public: bool TwainSetImageLayout( 

   double Left,

   double Top,

   double Right,

   double Bottom

)

public:

bool TwainSetImageLayout( 

   double Left,

   double Top,

   double Right,

   double Bottom

)

Parameters

Left: Value of the left-most edge of the area to scan measured in inches.
Top: Value of the top-most edge of the area to scan measured in inches.
Right: Value of the right-most edge of the area to scan measured in inches. Note: ImageWidth = Right - Left.
Bottom: Value of the bottom-most edge of the area to scan measured in inches. Note: ImageHeight = Bottom - Top.

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
TwainGetState Method
TwainGetImageLayout Method
TwainResetImageLayout Method