Color.Equality(Color, Color) Color.Equality(Color, Color) Color.Equality(Color, Color) Color.Equality(Color, Color) Operator

定义

测试两个指定的 Color 结构是否等效。Tests whether two specified Color structures are equivalent.

public:
 static bool operator ==(System::Drawing::Color left, System::Drawing::Color right);
public static bool operator == (System.Drawing.Color left, System.Drawing.Color right);
static member ( = ) : System.Drawing.Color * System.Drawing.Color -> bool
Public Shared Operator == (left As Color, right As Color) As Boolean

参数

left
Color Color Color Color

相等运算符左侧的 ColorThe Color that is to the left of the equality operator.

right
Color Color Color Color

相等运算符右侧的 ColorThe Color that is to the right of the equality operator.

返回

如果两个 Color 结构相等,则为 true;否则为 falsetrue if the two Color structures are equal; otherwise, false.

示例

下面的代码示例演示Equality运算符和SystemColors类。The following code example demonstrates the Equality operator and the SystemColors class. 此示例设计用于包含名为的按钮的 Windows 窗体Button1This example is designed to be used with a Windows Form that contains a button named Button1. 将以下代码粘贴到你的窗体并将相关联Button1_Click方法与该按钮Click事件。Paste the following code into your form and associate the Button1_Click method with the button's Click event.

void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   if ( this->BackColor == SystemColors::ControlDark )
   {
      this->BackColor = SystemColors::Control;
   }
}
private void Button1_Click(System.Object sender, System.EventArgs e)
{

    if (this.BackColor == SystemColors.ControlDark)
    {
        this.BackColor = SystemColors.Control;
    }
}
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    If (Color.op_Equality(Me.BackColor, SystemColors.ControlDark)) Then
        Me.BackColor = SystemColors.Control
    End If
End Sub

注解

此方法将多个的 ARGB 值进行比较Color结构。This method compares more than the ARGB values of the Color structures. 它还执行一些状态标志的比较。It also does a comparison of some state flags. 如果您希望只是比较两个Color结构,对它们进行比较使用ToArgb方法。If you want to compare just the ARGB values of two Color structures, compare them using the ToArgb method.

适用于