DrawEllipse Method (Pen, Int32, Int32, Int32, Int32)
Collapse the table of content
Expand the table of content

Graphics::DrawEllipse Method (Pen^, Int32, Int32, Int32, Int32)

 

Draws an ellipse defined by a bounding rectangle specified by coordinates for the upper-left corner of the rectangle, a height, and a width.

Namespace:   System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public:
void DrawEllipse(
	Pen^ pen,
	int x,
	int y,
	int width,
	int height
)

Parameters

pen
Type: System.Drawing::Pen^

Pen that determines the color, width, and style of the ellipse.

x
Type: System::Int32

The x-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.

y
Type: System::Int32

The y-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.

width
Type: System::Int32

Width of the bounding rectangle that defines the ellipse.

height
Type: System::Int32

Height of the bounding rectangle that defines the ellipse.

Exception Condition
ArgumentNullException

pen is null.

This method draws an ellipse that is defined by the bounding rectangle described by the x, y, width, and height parameters.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates the position and size of a rectangle to bound an ellipse.

  • Draws the ellipse to the screen.

private:
   void DrawEllipseInt( PaintEventArgs^ e )
   {
      // Create pen.
      Pen^ blackPen = gcnew Pen( Color::Black,3.0f );

      // Create location and size of ellipse.
      int x = 0;
      int y = 0;
      int width = 200;
      int height = 100;

      // Draw ellipse to screen.
      e->Graphics->DrawEllipse( blackPen, x, y, width, height );
   }

.NET Framework
Available since 1.1
Return to top
Show:
© 2016 Microsoft