PaintEventArgs クラス
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)

Public Class PaintEventArgs Inherits EventArgs Implements IDisposable
public class PaintEventArgs : EventArgs, IDisposable
public class PaintEventArgs extends EventArgs implements IDisposable
public class PaintEventArgs extends EventArgs implements IDisposable

コントロールが再描画されると Paint イベントが発生します。PaintEventArgs は、コントロールの描画に使用する Graphics と、コントロールの描画先の ClipRectangle を指定します。

Paint イベントを処理し、PaintEventArgs クラスを使用してフォームに四角形を描画する例を次に示します。四角形のサイズは、MouseDown イベントと MouseUp イベントを処理して判断します。この例では、Invalidate メソッドを使用して四角形の領域を無効にし、再描画させる方法も示します。
Dim RcDraw As Rectangle Dim PenWidth As Integer = 5 Private Sub Form1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown ' Determine the initial rectangle coordinates... RcDraw.X = e.X RcDraw.Y = e.Y End Sub Private Sub Form1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseUp ' Determine the width and height of the rectangle... If e.X < RcDraw.X Then RcDraw.Width = RcDraw.X - e.X RcDraw.X = e.X Else RcDraw.Width = e.X - RcDraw.X End If If e.Y < RcDraw.Y Then RcDraw.Height = RcDraw.Y - e.Y RcDraw.Y = e.Y Else RcDraw.Height = e.Y - RcDraw.Y End If ' Force a repaint of the region occupied by the rectangle... Me.Invalidate(RcDraw) End Sub Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint ' Draw the rectangle... e.Graphics.DrawRectangle(New Pen(Color.Blue, PenWidth), RcDraw) End Sub
private Rectangle RcDraw; private float PenWidth = 5; private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { // Determine the initial rectangle coordinates... RcDraw.X = e.X; RcDraw.Y = e.Y; } private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) { // Determine the width and height of the rectangle... if(e.X < RcDraw.X) { RcDraw.Width = RcDraw.X - e.X; RcDraw.X = e.X; } else { RcDraw.Width = e.X - RcDraw.X; } if(e.Y < RcDraw.Y) { RcDraw.Height = RcDraw.Y - e.Y; RcDraw.Y = e.Y; } else { RcDraw.Height = e.Y - RcDraw.Y; } // Force a repaint of the region occupied by the rectangle... this.Invalidate(RcDraw); } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { // Draw the rectangle... e.Graphics.DrawRectangle(new Pen(Color.Blue, PenWidth), RcDraw); }
private: Rectangle RcDraw; void Form1_MouseDown( Object^ /*sender*/, System::Windows::Forms::MouseEventArgs^ e ) { // Determine the initial rectangle coordinates... RcDraw.X = e->X; RcDraw.Y = e->Y; } void Form1_MouseUp( Object^ /*sender*/, System::Windows::Forms::MouseEventArgs^ e ) { // Determine the width and height of the rectangle... if ( e->X < RcDraw.X ) { RcDraw.Width = RcDraw.X - e->X; RcDraw.X = e->X; } else { RcDraw.Width = e->X - RcDraw.X; } if ( e->Y < RcDraw.Y ) { RcDraw.Height = RcDraw.Y - e->Y; RcDraw.Y = e->Y; } else { RcDraw.Height = e->Y - RcDraw.Y; } // Force a repaint of the region occupied by the rectangle... this->Invalidate( RcDraw ); } void Form1_Paint( Object^ /*sender*/, System::Windows::Forms::PaintEventArgs^ e ) { // Draw the rectangle... float PenWidth = 5; e->Graphics->DrawRectangle( gcnew Pen( Color::Blue,PenWidth ), RcDraw ); }
private Rectangle rcDraw; private float penWidth = 5; private void Form1_MouseDown(Object sender , System.Windows.Forms.MouseEventArgs e) { // Determine the initial rectangle coordinates... rcDraw.set_X(e.get_X()); rcDraw.set_Y(e.get_Y()); } //Form1_MouseDown private void Form1_MouseUp(Object sender, System.Windows.Forms.MouseEventArgs e) { // Determine the width and height of the rectangle... if (e.get_X() < rcDraw.get_X()) { rcDraw.set_Width(rcDraw.get_X() - e.get_X()); rcDraw.set_X(e.get_X()); } else { rcDraw.set_Width(e.get_X() - rcDraw.get_X()); } if (e.get_Y() < rcDraw.get_Y()) { rcDraw.set_Height(rcDraw.get_Y() - e.get_Y()); rcDraw.set_Y(e.get_Y()); } else { rcDraw.set_Height(e.get_Y() - rcDraw.get_Y()); } // Force a repaint of the region occupied by the rectangle... this.Invalidate(rcDraw); } //Form1_MouseUp private void Form1_Paint(Object sender, System.Windows.Forms.PaintEventArgs e) { // Draw the rectangle... e.get_Graphics().DrawRectangle(new Pen(Color.get_Blue(), penWidth), rcDraw); } //Form1_Paint
' This example creates a PictureBox control on the form and draws to it. ' This example assumes that the Form_Load event handler method is connected ' to the Load event of the form. Private pictureBox1 As New PictureBox() Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load ' Dock the PictureBox to the form and set its background to white. pictureBox1.Dock = DockStyle.Fill pictureBox1.BackColor = Color.White ' Connect the Paint event of the PictureBox to the event handler method. AddHandler pictureBox1.Paint, AddressOf Me.pictureBox1_Paint ' Add the PictureBox control to the Form. Me.Controls.Add(pictureBox1) End Sub 'Form1_Load Private Sub pictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) ' Create a local version of the graphics object for the PictureBox. Dim g As Graphics = e.Graphics ' Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", _ New Font("Arial", 10), Brushes.Red, New PointF(30.0F, 30.0F)) ' Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, _ pictureBox1.Top, pictureBox1.Right, pictureBox1.Bottom) End Sub 'pictureBox1_Paint
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private PictureBox pictureBox1 = new PictureBox(); private void Form1_Load(object sender, System.EventArgs e) { // Dock the PictureBox to the form and set its background to white. pictureBox1.Dock = DockStyle.Fill; pictureBox1.BackColor = Color.White; // Connect the Paint event of the PictureBox to the event handler method. pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint); // Add the PictureBox control to the Form. this.Controls.Add(pictureBox1); } private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { // Create a local version of the graphics object for the PictureBox. Graphics g = e.Graphics; // Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", new Font("Arial",10), System.Drawing.Brushes.Blue, new Point(30,30)); // Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, pictureBox1.Top, pictureBox1.Right, pictureBox1.Bottom); }
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private: PictureBox^ pictureBox1; void Form1_Load( Object^ /*sender*/, System::EventArgs^ /*e*/ ) { pictureBox1 = gcnew PictureBox; // Dock the PictureBox to the form and set its background to white. pictureBox1->Dock = DockStyle::Fill; pictureBox1->BackColor = Color::White; // Connect the Paint event of the PictureBox to the event handler method. pictureBox1->Paint += gcnew System::Windows::Forms::PaintEventHandler( this, &Form1::pictureBox1_Paint ); // Add the PictureBox control to the Form. this->Controls->Add( pictureBox1 ); } void pictureBox1_Paint( Object^ /*sender*/, System::Windows::Forms::PaintEventArgs^ e ) { // Create a local version of the graphics object for the PictureBox. Graphics^ g = e->Graphics; // Draw a string on the PictureBox. g->DrawString( "This is a diagonal line drawn on the control" , gcnew System::Drawing::Font( "Arial",10 ), System::Drawing::Brushes::Blue, Point(30,30) ); // Draw a line in the PictureBox. g->DrawLine( System::Drawing::Pens::Red, pictureBox1->Left, pictureBox1->Top , pictureBox1->Right, pictureBox1->Bottom ); }
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private PictureBox pictureBox1 = new PictureBox(); private void Form1_Load(Object sender, System.EventArgs e) { // Dock the PictureBox to the form and set its background to white. pictureBox1.set_Dock(DockStyle.Fill); pictureBox1.set_BackColor(Color.get_White()); // Connect the Paint event of the PictureBox to the event handler // method. pictureBox1.add_Paint(new System.Windows.Forms.PaintEventHandler(this. pictureBox1_Paint)); // Add the PictureBox control to the Form. this.get_Controls().Add(pictureBox1); } //Form1_Load private void pictureBox1_Paint(Object sender, System.Windows.Forms.PaintEventArgs e) { // Create a local version of the graphics object for the PictureBox. Graphics g = e.get_Graphics(); // Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", new Font("Arial", 10), System.Drawing.Brushes.get_Blue(), (PointF)new PointF(30, 30)); // Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.get_Red(), pictureBox1.get_Left(), pictureBox1.get_Top(), pictureBox1.get_Right(), pictureBox1.get_Bottom()); } //pictureBox1_Paint

System.EventArgs
System.Windows.Forms.PaintEventArgs
System.Windows.Forms.TableLayoutCellPaintEventArgs


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。


PaintEventArgs コンストラクタ
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)

Dim graphics As Graphics Dim clipRect As Rectangle Dim instance As New PaintEventArgs(graphics, clipRect)


' This example creates a PictureBox control on the form and draws to it. ' This example assumes that the Form_Load event handler method is connected ' to the Load event of the form. Private pictureBox1 As New PictureBox() Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load ' Dock the PictureBox to the form and set its background to white. pictureBox1.Dock = DockStyle.Fill pictureBox1.BackColor = Color.White ' Connect the Paint event of the PictureBox to the event handler method. AddHandler pictureBox1.Paint, AddressOf Me.pictureBox1_Paint ' Add the PictureBox control to the Form. Me.Controls.Add(pictureBox1) End Sub 'Form1_Load Private Sub pictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) ' Create a local version of the graphics object for the PictureBox. Dim g As Graphics = e.Graphics ' Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", _ New Font("Arial", 10), Brushes.Red, New PointF(30.0F, 30.0F)) ' Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, _ pictureBox1.Top, pictureBox1.Right, pictureBox1.Bottom) End Sub 'pictureBox1_Paint
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private PictureBox pictureBox1 = new PictureBox(); private void Form1_Load(object sender, System.EventArgs e) { // Dock the PictureBox to the form and set its background to white. pictureBox1.Dock = DockStyle.Fill; pictureBox1.BackColor = Color.White; // Connect the Paint event of the PictureBox to the event handler method. pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint); // Add the PictureBox control to the Form. this.Controls.Add(pictureBox1); } private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { // Create a local version of the graphics object for the PictureBox. Graphics g = e.Graphics; // Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", new Font("Arial",10), System.Drawing.Brushes.Blue, new Point(30,30)); // Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, pictureBox1.Top, pictureBox1.Right, pictureBox1.Bottom); }
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private: PictureBox^ pictureBox1; void Form1_Load( Object^ /*sender*/, System::EventArgs^ /*e*/ ) { pictureBox1 = gcnew PictureBox; // Dock the PictureBox to the form and set its background to white. pictureBox1->Dock = DockStyle::Fill; pictureBox1->BackColor = Color::White; // Connect the Paint event of the PictureBox to the event handler method. pictureBox1->Paint += gcnew System::Windows::Forms::PaintEventHandler( this, &Form1::pictureBox1_Paint ); // Add the PictureBox control to the Form. this->Controls->Add( pictureBox1 ); } void pictureBox1_Paint( Object^ /*sender*/, System::Windows::Forms::PaintEventArgs^ e ) { // Create a local version of the graphics object for the PictureBox. Graphics^ g = e->Graphics; // Draw a string on the PictureBox. g->DrawString( "This is a diagonal line drawn on the control" , gcnew System::Drawing::Font( "Arial",10 ), System::Drawing::Brushes::Blue, Point(30,30) ); // Draw a line in the PictureBox. g->DrawLine( System::Drawing::Pens::Red, pictureBox1->Left, pictureBox1->Top , pictureBox1->Right, pictureBox1->Bottom ); }
// This example creates a PictureBox control on the form and draws to it. // This example assumes that the Form_Load event handler method is // connected to the Load event of the form. private PictureBox pictureBox1 = new PictureBox(); private void Form1_Load(Object sender, System.EventArgs e) { // Dock the PictureBox to the form and set its background to white. pictureBox1.set_Dock(DockStyle.Fill); pictureBox1.set_BackColor(Color.get_White()); // Connect the Paint event of the PictureBox to the event handler // method. pictureBox1.add_Paint(new System.Windows.Forms.PaintEventHandler(this. pictureBox1_Paint)); // Add the PictureBox control to the Form. this.get_Controls().Add(pictureBox1); } //Form1_Load private void pictureBox1_Paint(Object sender, System.Windows.Forms.PaintEventArgs e) { // Create a local version of the graphics object for the PictureBox. Graphics g = e.get_Graphics(); // Draw a string on the PictureBox. g.DrawString("This is a diagonal line drawn on the control", new Font("Arial", 10), System.Drawing.Brushes.get_Blue(), (PointF)new PointF(30, 30)); // Draw a line in the PictureBox. g.DrawLine(System.Drawing.Pens.get_Red(), pictureBox1.get_Left(), pictureBox1.get_Top(), pictureBox1.get_Right(), pictureBox1.get_Bottom()); } //pictureBox1_Paint

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。


PaintEventArgs プロパティ
PaintEventArgs メソッド

名前 | 説明 | |
---|---|---|
![]() | Dispose | オーバーロードされます。 PaintEventArgs によって使用されているリソースを解放します。 |
![]() | Equals | オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 ( Object から継承されます。) |
![]() | GetHashCode | 特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 ( Object から継承されます。) |
![]() | GetType | 現在のインスタンスの Type を取得します。 ( Object から継承されます。) |
![]() | ReferenceEquals | 指定した複数の Object インスタンスが同一かどうかを判断します。 ( Object から継承されます。) |
![]() | ToString | 現在の Object を表す String を返します。 ( Object から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | Dispose | オーバーロードされます。 PaintEventArgs によって使用されているリソースを解放します。 |
![]() | Finalize | オーバーライドされます。 |
![]() | MemberwiseClone | 現在の Object の簡易コピーを作成します。 ( Object から継承されます。) |

PaintEventArgs メンバ
PaintEventArgs データ型で公開されるメンバを以下の表に示します。



名前 | 説明 | |
---|---|---|
![]() | Dispose | オーバーロードされます。 PaintEventArgs によって使用されているリソースを解放します。 |
![]() | Equals | オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 (Object から継承されます。) |
![]() | GetHashCode | 特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 (Object から継承されます。) |
![]() | GetType | 現在のインスタンスの Type を取得します。 (Object から継承されます。) |
![]() | ReferenceEquals | 指定した複数の Object インスタンスが同一かどうかを判断します。 (Object から継承されます。) |
![]() | ToString | 現在の Object を表す String を返します。 (Object から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | Dispose | オーバーロードされます。 PaintEventArgs によって使用されているリソースを解放します。 |
![]() | Finalize | オーバーライドされます。 |
![]() | MemberwiseClone | 現在の Object の簡易コピーを作成します。 (Object から継承されます。) |

- PaintEventArgsのページへのリンク