ImageGear .NET
GetImageLayout Method




Gets the image layout of the selected TWAIN device.
Syntax
'Declaration
 
Public Function GetImageLayout() As ImGearDoubleRectangle
'Usage
 
Dim instance As ImGearTWAIN
Dim value As ImGearDoubleRectangle
 
value = instance.GetImageLayout()
public ImGearDoubleRectangle GetImageLayout()
public: ImGearDoubleRectangle GetImageLayout(); 
public:
ImGearDoubleRectangle GetImageLayout(); 

Return Value

ImageGear.Core.ImGearDoubleRectangle that represents the physical bounding box of the region to be acquired.

Note: Use only the Left, Top, Right, and Bottom properties of the return value.

Exceptions
ExceptionDescription
ImageGear.Core.ImGearException Thrown if this method is called while there is not an open connection with a Data Source.
Remarks

Prior to calling this method:

Note: Only the Left, Top, Right and Bottom properties of the returned ImageGear.Core.ImGearDoubleRectangle should be used. The Width and Height properties should not be used, because they assume endpoint-inclusive semantics. Using endpoint-inclusive semantics, a rectangle with left, top, right, and bottom coordinates all equal to 0 is one pixel wide and one pixel tall. So, for example, the Width property is calculated as Right - Left + 1. This is not appropriate for a TWAIN image layout rectangle.

See Also

Reference

ImGearTWAIN Class
ImGearTWAIN Members
ImGearDoubleRectangle Structure

 

 


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