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



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

Syntax

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

Parameters

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

Return Value

This operator returns true if left and right have equal Width and Height values; otherwise false.

Example

This example creates a size in inches, converts it to pixels, then makes sure the two sizes are still equal.

Visual BasicCopy Code
Public Sub AnnSize_OperatorEquals()
   ' set up a new unit converter with 96 DPI
   Dim converter As AnnUnitConverter = New AnnUnitConverter(96, 96)
   Dim inches As AnnSize = New AnnSize(1.5F, 2.0F, AnnUnit.Inch)
   Dim pixels As AnnSize = New AnnSize(inches.ConvertTo(converter, AnnUnit.Pixel).ToSizeF(), AnnUnit.Pixel)

   Dim s As String

   ' should say true
   s = String.Format("Should say True: inches == pixels is {0}", AnnSize.op_Equality(inches, pixels))
   MessageBox.Show(s)

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

   // set up a new unit converter with 96 DPI 
   AnnUnitConverter converter = new AnnUnitConverter(96, 96); 
   AnnSize inches = new AnnSize(1.5F, 2f, AnnUnit.Inch); 
   AnnSize pixels = new AnnSize(inches.ConvertTo(converter, AnnUnit.Pixel).ToSizeF(), AnnUnit.Pixel); 
 
   string s; 
 
   // should say true 
   s = string.Format("Should say True: inches == pixels is {0}", inches == pixels); 
   MessageBox.Show(s); 
 
   // should say false 
   s = string.Format("Should say False: inches != pixels is {0}", inches != pixels); 
   MessageBox.Show(s); 
}

Remarks

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

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

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