LinearGradientBrush.Clone 方法
定义
重要
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创建此 LinearGradientBrush的确切副本。
public:
override System::Object ^ Clone();public override object Clone ();override this.Clone : unit -> objPublic Overrides Function Clone () As Object返回
此方法创建 LinearGradientBrush 作为对象强制转换。
示例
下面的代码示例旨在与 Windows 窗体一起使用，它需要 PaintEventArgseOnPaint 事件对象。 该代码执行以下操作：
创建新的 LinearGradientBrush。
使用此画笔将省略号绘制到屏幕。
克隆 LinearGradientBrush（
clonedLGBrush）。使用克隆的画笔将椭圆绘制到屏幕正下方的第一个椭圆。
private:
void CloneExample( PaintEventArgs^ e )
{
// Create a LinearGradientBrush.
int x = 20,y = 20,h = 100,w = 200;
Rectangle myRect = Rectangle(x,y,w,h);
LinearGradientBrush^ myLGBrush = gcnew LinearGradientBrush( myRect,Color::Blue,Color::Aquamarine,45.0f,true );
// Draw an ellipse to the screen using the LinearGradientBrush.
e->Graphics->FillEllipse( myLGBrush, x, y, w, h );
// Clone the LinearGradientBrush.
LinearGradientBrush^ clonedLGBrush = dynamic_cast<LinearGradientBrush^>(myLGBrush->Clone());
// Justify the left edge of the gradient with the
// left edge of the ellipse.
clonedLGBrush->TranslateTransform( -100.0f, 0.0f );
// Draw a second ellipse to the screen using the cloned HBrush.
y = 150;
e->Graphics->FillEllipse( clonedLGBrush, x, y, w, h );
}
private void CloneExample(PaintEventArgs e)
{
// Create a LinearGradientBrush.
int x=20, y=20, h=100, w=200;
Rectangle myRect = new Rectangle(x, y, w, h);
LinearGradientBrush myLGBrush = new LinearGradientBrush(
myRect, Color.Blue, Color.Aquamarine, 45.0f, true);
// Draw an ellipse to the screen using the LinearGradientBrush.
e.Graphics.FillEllipse(myLGBrush, x, y, w, h);
// Clone the LinearGradientBrush.
LinearGradientBrush clonedLGBrush =
(LinearGradientBrush)myLGBrush.Clone();
// Justify the left edge of the gradient with the
// left edge of the ellipse.
clonedLGBrush.TranslateTransform(-100.0f, 0.0f);
// Draw a second ellipse to the screen using the cloned HBrush.
y=150;
e.Graphics.FillEllipse(clonedLGBrush, x, y, w, h);
}
Public Sub CloneExample(ByVal e As PaintEventArgs)
' Create a LinearGradientBrush.
Dim x As Integer = 20
Dim y As Integer = 20
Dim h As Integer = 100
Dim w As Integer = 200
Dim myRect As New Rectangle(x, y, w, h)
Dim myLGBrush As New LinearGradientBrush(myRect, Color.Blue, _
Color.Aquamarine, 45.0F, True)
' Draw an ellipse to the screen using the LinearGradientBrush.
e.Graphics.FillEllipse(myLGBrush, x, y, w, h)
' Clone the LinearGradientBrush.
Dim clonedLGBrush As LinearGradientBrush = _
CType(myLGBrush.Clone(), LinearGradientBrush)
' Justify the left edge of the gradient with the left edge of the
' ellipse.
clonedLGBrush.TranslateTransform(-100.0F, 0.0F)
' Draw a second ellipse to the screen using the cloned HBrush.
y = 150
e.Graphics.FillEllipse(clonedLGBrush, x, y, w, h)
End Sub
