Graphics.DrawLine Method (Pen, Single, Single, Single, Single)
.NET Framework (current version)
Draws a line connecting the two points specified by the coordinate pairs.
Assembly: System.Drawing (in System.Drawing.dll)
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.
| Exception | Condition |
|---|---|
| ArgumentNullException | pen is null. |
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 PaintEventArgse, 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 void DrawLineFloat(PaintEventArgs e) { // Create pen. Pen blackPen = new Pen(Color.Black, 3); // Create coordinates of points that define line. float x1 = 100.0F; float y1 = 100.0F; float x2 = 500.0F; float y2 = 100.0F; // Draw line to screen. e.Graphics.DrawLine(blackPen, x1, y1, x2, y2); }
.NET Framework
Available since 1.1
Available since 1.1
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