Graphics::DrawEllipse Method (Pen^, Single, Single, Single, Single)
Draws an ellipse defined by a bounding rectangle specified by a pair of coordinates, a height, and a width.
Assembly: System.Drawing (in System.Drawing.dll)
Parameters
- pen
-
Type:
System.Drawing::Pen^
Pen that determines the color, width, and style of the ellipse.
- x
-
Type:
System::Single
The x-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.
- y
-
Type:
System::Single
The y-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.
- width
-
Type:
System::Single
Width of the bounding rectangle that defines the ellipse.
- height
-
Type:
System::Single
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 DrawEllipseFloat( PaintEventArgs^ e ) { // Create pen. Pen^ blackPen = gcnew Pen( Color::Black,3.0f ); // Create location and size of ellipse. float x = 0.0F; float y = 0.0F; float width = 200.0F; float height = 100.0F; // Draw ellipse to screen. e->Graphics->DrawEllipse( blackPen, x, y, width, height ); }
Available since 1.1