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Graphics::DrawLine Method (Pen, Int32, Int32, Int32, Int32)

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

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

public:
void DrawLine(
	Pen^ pen, 
	int x1, 
	int y1, 
	int x2, 
	int y2
)

Parameters

pen
Type: System.Drawing::Pen

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

x1
Type: System::Int32

The x-coordinate of the first point.

y1
Type: System::Int32

The y-coordinate of the first point.

x2
Type: System::Int32

The x-coordinate of the second point.

y2
Type: System::Int32

The y-coordinate of the second point.

ExceptionCondition
ArgumentNullException

pen is nullptr.

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

      // Create coordinates of points that define line. 
      int x1 = 100;
      int y1 = 100;
      int x2 = 500;
      int y2 = 100;

      // Draw line to screen.
      e->Graphics->DrawLine( blackPen, x1, y1, x2, y2 );
   }

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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