Draws a line connecting the two points specified by the coordinate pairs.
Public Sub DrawLine ( _ pen As Pen, _ x1 As Integer, _ y1 As Integer, _ x2 As Integer, _ y2 As Integer _ )
public void DrawLine( Pen pen, int x1, int y1, int x2, int y2 )
public: void DrawLine( Pen^ pen, int x1, int y1, int x2, int y2 )
member DrawLine : pen:Pen * x1:int * y1:int * x2:int * y2:int -> unit
pen is nullNothingnullptra null reference (Nothing in Visual Basic).
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 DrawLineInt(ByVal e As PaintEventArgs) ' Create pen. Dim blackPen As New Pen(Color.Black, 3) ' Create coordinates of points that define line. Dim x1 As Integer = 100 Dim y1 As Integer = 100 Dim x2 As Integer = 500 Dim y2 As Integer = 100 ' Draw line to screen. e.Graphics.DrawLine(blackPen, x1, y1, x2, y2) End Sub
public void DrawLineInt(PaintEventArgs e) { // Create pen. Pen blackPen = new Pen(Color.Black, 3); // 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); }
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 SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2