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Equality Operator
See Also  Example
Leadtools.Annotations Namespace > AnnLength Structure : Equality Operator


left
The AnnLength structure on the left side of the equality operator.
right
The AnnLength structure on the right side of the equality operator.
Tests whether two AnnLength structures are equal.

Syntax

Visual Basic (Declaration) 
Public Operator =( _
   ByVal left As AnnLength, _
   ByVal right As AnnLength _
) As Boolean
C# 
public bool operator ==( 
   AnnLength left,
   AnnLength right
)
C++/CLI 
public:
bool operator ==( 
   AnnLength left,
   AnnLength right
)

Parameters

left
The AnnLength structure on the left side of the equality operator.
right
The AnnLength structure on the right side of the equality operator.

Return Value

This operator returns true if left and right have equal lengths; otherwise false.

Example

This example creates a length in inches, converts it to pixels then makes sure the 2 lengths are still equal.

Visual BasicCopy Code
Public Sub AnnLength_OperatorEquals()
   ' set up a new unit converter with 96 DPI
   Dim converter As AnnUnitConverter = New AnnUnitConverter(96, 96)
   Dim inches As AnnLength = New AnnLength(1.5F, AnnUnit.Inch)
   Dim pixels As AnnLength = New AnnLength(inches.Converted(converter, AnnUnit.Pixel), AnnUnit.Pixel)

   Dim s As String
   ' should say true
   s = String.Format("This should be true: inches == pixels is {0}", AnnLength.op_Equality(inches, pixels))
   MessageBox.Show(s)

   ' should say false
   s = String.Format("This should be false: inches != pixels is {0}", AnnLength.op_Inequality(inches, pixels))
   MessageBox.Show(s)
End Sub
C#Copy Code
public void AnnLength_OperatorEquals() 

   // set up a new unit converter with 96 DPI 
   AnnUnitConverter converter = new AnnUnitConverter(96, 96); 
   AnnLength inches = new AnnLength(1.5F, AnnUnit.Inch); 
   AnnLength pixels = new AnnLength(inches.Converted(converter, AnnUnit.Pixel), AnnUnit.Pixel); 
 
   string s; 
   // should say true 
   s = string.Format("This should be true: inches == pixels is {0}", inches == pixels); 
   MessageBox.Show(s); 
 
   // should say false 
   s = string.Format("This should be false: inches != pixels is {0}", inches != pixels); 
   MessageBox.Show(s); 
}

Remarks

If the two lengths have different units, comparison will be done after temporarily converted both to a common unit.

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features