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Graphics.DrawLine Method (Pen, PointF, PointF)

Draws a line connecting two PointF structures.

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

member DrawLine : 
        pen:Pen * 
        pt1:PointF * 
        pt2:PointF -> unit

Parameters

pen
Type: System.Drawing.Pen

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

pt1
Type: System.Drawing.PointF

PointF structure that represents the first point to connect.

pt2
Type: System.Drawing.PointF

PointF structure that represents the second point to connect.

ExceptionCondition
ArgumentNullException

pen is a null reference (Nothing in Visual Basic).

This method draws a line connecting the two points specified by the pt1 and p2 parameters.

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

  • Creates a black pen.

  • Creates points for the endpoints of the line.

  • Draws the line to the screen.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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