GdPictureImaging.TwainSetImageLayout Method

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

public Boolean TwainSetImageLayout(
    Double Left, 
    Double Top, 
    Double Right, 
    Double Bottom
);

Visual Basic

Public Function TwainSetImageLayout(
    ByVal Left As Double, 
    ByVal Top As Double, 
    ByVal Right As Double, 
    ByVal Bottom As Double
) As Boolean

Parameters

Parameters	Description
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.

Returns

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

Remarks

Before using this function check that the TWAIN state is 4 (TWAIN_SOURCE_OPEN)

To get the TWAIN state, use the TwainGetState() function.