Graphics.DrawLine メソッド

定義

座標ペアで指定された 2 つの点を結ぶ直線を描画します。Draws a line connecting the two points specified by the coordinate pairs.

オーバーロード

DrawLine(Pen, PointF, PointF)

2 つの PointF 構造体を接続する直線を描画します。Draws a line connecting two PointF structures.

DrawLine(Pen, Int32, Int32, Int32, Int32)

座標ペアで指定された 2 つの点を結ぶ直線を描画します。Draws a line connecting the two points specified by the coordinate pairs.

DrawLine(Pen, Single, Single, Single, Single)

座標ペアで指定された 2 つの点を結ぶ直線を描画します。Draws a line connecting the two points specified by the coordinate pairs.

DrawLine(Pen, Point, Point)

2 つの Point 構造体を接続する直線を描画します。Draws a line connecting two Point structures.

DrawLine(Pen, PointF, PointF)

2 つの PointF 構造体を接続する直線を描画します。Draws a line connecting two PointF structures.

public:
 void DrawLine(System::Drawing::Pen ^ pen, System::Drawing::PointF pt1, System::Drawing::PointF pt2);
public void DrawLine (System.Drawing.Pen pen, System.Drawing.PointF pt1, System.Drawing.PointF pt2);
member this.DrawLine : System.Drawing.Pen * System.Drawing.PointF * System.Drawing.PointF -> unit
Public Sub DrawLine (pen As Pen, pt1 As PointF, pt2 As PointF)

パラメーター

pen
Pen

直線の色、幅、およびスタイルを決定する PenPen that determines the color, width, and style of the line.

pt1
PointF

接続する最初の点を表す PointF 構造体。PointF structure that represents the first point to connect.

pt2
PointF

接続する 2 番目の点を表す PointF 構造体。PointF structure that represents the second point to connect.

例外

pennullです。pen is null.

次のコード例は、Windows フォームで使用するように設計されてい PaintEventArgs e ます。これは、イベントハンドラーのパラメーターであるを必要とし Paint ます。The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. コードは、次のアクションを実行します。The code performs the following actions:

  • 黒のペンを作成します。Creates a black pen.

  • 線の端点の点を作成します。Creates points for the endpoints of the line.

  • 画面に線を描画します。Draws the line to the screen.

public:
   void DrawLinePointF( PaintEventArgs^ e )
   {

      // Create pen.
      Pen^ blackPen = gcnew Pen( Color::Black,3.0f );
      
      // Create points that define line.
      PointF point1 = PointF(100.0F,100.0F);
      PointF point2 = PointF(500.0F,100.0F);

      // Draw line to screen.
      e->Graphics->DrawLine( blackPen, point1, point2 );
   }
public void DrawLinePointF(PaintEventArgs e)
{
             
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create points that define line.
    PointF point1 = new PointF(100.0F, 100.0F);
    PointF point2 = new PointF(500.0F, 100.0F);
             
    // Draw line to screen.
    e.Graphics.DrawLine(blackPen, point1, point2);
}
Public Sub DrawLinePointF(ByVal e As PaintEventArgs)

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

    ' Create points that define line.
    Dim point1 As New PointF(100.0F, 100.0F)
    Dim point2 As New PointF(500.0F, 100.0F)

    ' Draw line to screen.
    e.Graphics.DrawLine(blackPen, point1, point2)
End Sub

注釈

このメソッドは、パラメーターと p パラメーターで指定された2つの点を結ぶ線を描画し pt1 2 ます。This method draws a line connecting the two points specified by the pt1 and p2 parameters.

こちらもご覧ください

DrawLine(Pen, Int32, Int32, Int32, Int32)

座標ペアで指定された 2 つの点を結ぶ直線を描画します。Draws a line connecting the two points specified by the coordinate pairs.

public:
 void DrawLine(System::Drawing::Pen ^ pen, int x1, int y1, int x2, int y2);
public void DrawLine (System.Drawing.Pen pen, int x1, int y1, int x2, int y2);
member this.DrawLine : System.Drawing.Pen * int * int * int * int -> unit
Public Sub DrawLine (pen As Pen, x1 As Integer, y1 As Integer, x2 As Integer, y2 As Integer)

パラメーター

pen
Pen

直線の色、幅、およびスタイルを決定する PenPen that determines the color, width, and style of the line.

x1
Int32

最初の点の x 座標。The x-coordinate of the first point.

y1
Int32

最初の点の y 座標。The y-coordinate of the first point.

x2
Int32

2 番目の点の x 座標。The x-coordinate of the second point.

y2
Int32

2 番目の点の y 座標。The y-coordinate of the second point.

例外

pennullです。pen is null.

次のコード例は、Windows フォームで使用するように設計されてい PaintEventArgs e ます。これは、イベントハンドラーのパラメーターであるを必要とし Paint ます。The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. コードは、次のアクションを実行します。The code performs the following actions:

  • 黒のペンを作成します。Creates a black pen.

  • 線の端点の座標を作成します。Creates the coordinates of the endpoints of the line.

  • 画面に線を描画します。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 );
   }
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 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

注釈

このメソッドは、、、、およびの各パラメーターで指定された2つの点を結ぶ線を描画し x1 y1 x2 y2 ます。This method draws a line connecting the two points specified by the x1, y1, x2, and y2 parameters.

こちらもご覧ください

DrawLine(Pen, Single, Single, Single, Single)

座標ペアで指定された 2 つの点を結ぶ直線を描画します。Draws a line connecting the two points specified by the coordinate pairs.

public:
 void DrawLine(System::Drawing::Pen ^ pen, float x1, float y1, float x2, float y2);
public void DrawLine (System.Drawing.Pen pen, float x1, float y1, float x2, float y2);
member this.DrawLine : System.Drawing.Pen * single * single * single * single -> unit
Public Sub DrawLine (pen As Pen, x1 As Single, y1 As Single, x2 As Single, y2 As Single)

パラメーター

pen
Pen

直線の色、幅、およびスタイルを決定する PenPen that determines the color, width, and style of the line.

x1
Single

最初の点の x 座標。The x-coordinate of the first point.

y1
Single

最初の点の y 座標。The y-coordinate of the first point.

x2
Single

2 番目の点の x 座標。The x-coordinate of the second point.

y2
Single

2 番目の点の y 座標。The y-coordinate of the second point.

例外

pennullです。pen is null.

次のコード例は、Windows フォームで使用するように設計されてい PaintEventArgs e ます。これは、イベントハンドラーのパラメーターであるを必要とし Paint ます。The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. コードは、次のアクションを実行します。The code performs the following actions:

  • 黒のペンを作成します。Creates a black pen.

  • 線の端点の座標を作成します。Creates the coordinates of the endpoints of the line.

  • 画面に線を描画します。Draws the line to the screen.

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

      // 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 );
   }
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);
}
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

注釈

このメソッドは、、、、およびの各パラメーターで指定された2つの点を結ぶ線を描画し x1 y1 x2 y2 ます。This method draws a line connecting the two points specified by the x1, y1, x2, and y2 parameters.

こちらもご覧ください

DrawLine(Pen, Point, Point)

2 つの Point 構造体を接続する直線を描画します。Draws a line connecting two Point structures.

public:
 void DrawLine(System::Drawing::Pen ^ pen, System::Drawing::Point pt1, System::Drawing::Point pt2);
public void DrawLine (System.Drawing.Pen pen, System.Drawing.Point pt1, System.Drawing.Point pt2);
member this.DrawLine : System.Drawing.Pen * System.Drawing.Point * System.Drawing.Point -> unit
Public Sub DrawLine (pen As Pen, pt1 As Point, pt2 As Point)

パラメーター

pen
Pen

直線の色、幅、およびスタイルを決定する PenPen that determines the color, width, and style of the line.

pt1
Point

接続する最初の点を表す Point 構造体。Point structure that represents the first point to connect.

pt2
Point

接続する 2 番目の点を表す Point 構造体。Point structure that represents the second point to connect.

例外

pennullです。pen is null.

次のコード例は、Windows フォームで使用するように設計されてい PaintEventArgs e ます。これは、イベントハンドラーのパラメーターであるを必要とし Paint ます。The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. コードは、次のアクションを実行します。The code performs the following actions:

  • 黒のペンを作成します。Creates a black pen.

  • 線の端点の点を作成します。Creates points for the endpoints of the line.

  • 画面に線を描画します。Draws the line to the screen.

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

      // Create points that define line.
      Point point1 = Point(100,100);
      Point point2 = Point(500,100);

      // Draw line to screen.
      e->Graphics->DrawLine( blackPen, point1, point2 );
   }
public void DrawLinePoint(PaintEventArgs e)
{
             
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create points that define line.
    Point point1 = new Point(100, 100);
    Point point2 = new Point(500, 100);
             
    // Draw line to screen.
    e.Graphics.DrawLine(blackPen, point1, point2);
}
Public Sub DrawLinePoint(ByVal e As PaintEventArgs)

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

    ' Create points that define line.
    Dim point1 As New Point(100, 100)
    Dim point2 As New Point(500, 100)

    ' Draw line to screen.
    e.Graphics.DrawLine(blackPen, point1, point2)
End Sub

こちらもご覧ください

適用対象