# Point.Equality(Point, Point) 演算子

## 定義

2 つの Point 構造体を比較して、等しいかどうかを確認します。Compares two Point structures for equality.

``````public:
static bool operator ==(System::Windows::Point point1, System::Windows::Point point2);``````
``public static bool operator == (System.Windows.Point point1, System.Windows.Point point2);``
``static member ( = ) : System.Windows.Point * System.Windows.Point -> bool``
``Public Shared Operator == (point1 As Point, point2 As Point) As Boolean``

point1
Point

point2
Point

#### 戻り値

Boolean

`point1` および `point2`X 座標と Y 座標が等しい場合は `true`。それ以外の場合は `false``true` if both the X and Y coordinates of `point1` and `point2` are equal; otherwise, `false`.

## 例

Pointオーバーロードされた (= =) 演算子を使用して2つの構造体が等しいかどうかを確認する方法を次の例に示します。The following example shows how to check if two Point structures are equal using the overloaded (==) operator.

``````private Boolean overloadedEqualityOperatorExample()
{
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);

// Check if two Points are equal using the overloaded equality operator.
// areEqual is False.
Boolean areEqual = (point1 == point2);

return areEqual;
}
``````
``````Private Function overloadedEqualityOperatorExample() As Boolean
Dim point1 As New Point(10, 5)
Dim point2 As New Point(15, 40)

' Check if two Points are equal using the overloaded equality operator.
' areEqual is False.
Dim areEqual As Boolean = (point1 = point2)

Return areEqual

End Function
``````

## 注釈

ポイントの座標は、値を使用して記述され Double ます。A point's coordinates are described using Double values. の値は Double 算術演算を実行するときに有効桁数を失う可能性があるため、論理的に等しい2つの値の比較は Point 失敗する可能性があります。Because the value of Double can lose precision when arithmetic operations are performed on them, a comparison between two Point values that are logically equal might fail.