PaintEventArgs(Graphics, Rectangle) Construtor
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Inicializa uma nova instância da classe PaintEventArgs com o gráfico e retângulo de recorte especificados.
public:
PaintEventArgs(System::Drawing::Graphics ^ graphics, System::Drawing::Rectangle clipRect);
public PaintEventArgs (System.Drawing.Graphics graphics, System.Drawing.Rectangle clipRect);
new System.Windows.Forms.PaintEventArgs : System.Drawing.Graphics * System.Drawing.Rectangle -> System.Windows.Forms.PaintEventArgs
Public Sub New (graphics As Graphics, clipRect As Rectangle)
Os exemplos de código a seguir desenham linhas e texto em um PictureBox controle.
// 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();
// Cache font instead of recreating font objects each time we paint.
private Font fnt = new Font("Arial",10);
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",
fnt, 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 pictureBox1 As New PictureBox()
Private fnt as New Font("Arial", 10)
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
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", _
fnt, 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
O Graphics identificado pelo graphics
parâmetro é descartado quando o PaintEventArgs descarte é descartado.
Produto | Versões |
---|---|
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 |
Windows Desktop | 3.0, 3.1, 5, 6, 7 |