Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

Graphics.DrawLine Method (Pen, Single, Single, Single, Single)

Draws a line connecting the two points specified by the coordinate pairs.

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

'Declaration
Public Sub DrawLine ( _
	pen As Pen, _
	x1 As Single, _
	y1 As Single, _
	x2 As Single, _
	y2 As Single _
)

Parameters

pen
Type: System.Drawing.Pen

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

x1
Type: System.Single

The x-coordinate of the first point.

y1
Type: System.Single

The y-coordinate of the first point.

x2
Type: System.Single

The x-coordinate of the second point.

y2
Type: System.Single

The y-coordinate of the second point.

ExceptionCondition
ArgumentNullException

pen is Nothing.

This method draws a line connecting the two points specified by the x1, y1, x2, and y2 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 the coordinates of the endpoints of the line.

  • Draws the line to the screen.

Public Sub DrawLineFloat(ByVal e As PaintEventArgs)

    ' Create pen. 
    Dim blackPen As New Pen(Color.Black, 3)

    ' Create coordinates of points that define line. 
    Dim x1 As Single = 100.0F
    Dim y1 As Single = 100.0F
    Dim x2 As Single = 500.0F
    Dim y2 As Single = 100.0F

    ' Draw line to screen.
    e.Graphics.DrawLine(blackPen, x1, y1, x2, y2)
End Sub

.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
Show:
© 2015 Microsoft