Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Printing
Imports System.Drawing.Drawing2D
Public Class MainClass
Shared Sub Main()
Dim form1 As Form1 = new Form1()
Application.Run(form1)
End Sub
End Class
Public Class Form1
' Display a print preview dialog.
Private Sub btnPrintPreview_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrintPreview.Click
dlgPrintPreview.ShowDialog()
End Sub
' Display a print dialog.
Private Sub btnPrintDialog_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrintDialog.Click
If dlgPrint.ShowDialog() = Windows.Forms.DialogResult.OK Then
dlgPrint.Document.Print()
End If
End Sub
' Print now.
Private Sub btnPrintNow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrintNow.Click
pdocGraph.Print()
End Sub
' Print a page.
Private Sub pdocGraph_PrintPage(ByVal sender As Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles pdocGraph.PrintPage
e.Graphics.DrawRectangle(Pens.Red, e.MarginBounds)
Dim picture_rect As New RectangleF(100, 100, 500, 300)
Dim margin_rect As New RectangleF( _
e.MarginBounds.X, _
e.MarginBounds.Y, _
e.MarginBounds.Width, _
e.MarginBounds.Height)
CenterPictureInMargins(e.Graphics, picture_rect, margin_rect)
' Draw a rectangle
e.Graphics.FillRectangle(Brushes.LightGray, picture_rect)
e.Graphics.DrawRectangle(Pens.Black, Rectangle.Round(picture_rect))
' There are no more pages.
e.HasMorePages = False
End Sub
Private Sub CenterPictureInMargins(ByVal gr As Graphics, ByVal picture_bounds As RectangleF, ByVal margin_bounds As RectangleF)
gr.ResetTransform()
Dim dx As Single = _
margin_bounds.Left - picture_bounds.Left + _
(margin_bounds.Width - picture_bounds.Width) / 2
Dim dy As Single = _
margin_bounds.Top - picture_bounds.Top + _
(margin_bounds.Height - picture_bounds.Height) / 2
gr.TranslateTransform(dx, dy)
End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.btnPrintNow = New System.Windows.Forms.Button
Me.btnPrintDialog = New System.Windows.Forms.Button
Me.btnPrintPreview = New System.Windows.Forms.Button
Me.dlgPrintPreview = New System.Windows.Forms.PrintPreviewDialog
Me.pdocGraph = New System.Drawing.Printing.PrintDocument
Me.dlgPrint = New System.Windows.Forms.PrintDialog
Me.SuspendLayout()
'
'btnPrintNow
'
Me.btnPrintNow.Location = New System.Drawing.Point(49, 90)
Me.btnPrintNow.Name = "btnPrintNow"
Me.btnPrintNow.Size = New System.Drawing.Size(88, 24)
Me.btnPrintNow.TabIndex = 11
Me.btnPrintNow.Text = "Print Now"
'
'btnPrintDialog
'
Me.btnPrintDialog.Location = New System.Drawing.Point(49, 58)
Me.btnPrintDialog.Name = "btnPrintDialog"
Me.btnPrintDialog.Size = New System.Drawing.Size(88, 24)
Me.btnPrintDialog.TabIndex = 10
Me.btnPrintDialog.Text = "Print Dialog"
'
'btnPrintPreview
'
Me.btnPrintPreview.Location = New System.Drawing.Point(49, 26)
Me.btnPrintPreview.Name = "btnPrintPreview"
Me.btnPrintPreview.Size = New System.Drawing.Size(88, 24)
Me.btnPrintPreview.TabIndex = 9
Me.btnPrintPreview.Text = "Print Preview"
'
'dlgPrintPreview
'
Me.dlgPrintPreview.AutoScrollMargin = New System.Drawing.Size(0, 0)
Me.dlgPrintPreview.AutoScrollMinSize = New System.Drawing.Size(0, 0)
Me.dlgPrintPreview.ClientSize = New System.Drawing.Size(400, 300)
Me.dlgPrintPreview.Document = Me.pdocGraph
Me.dlgPrintPreview.Enabled = True
Me.dlgPrintPreview.Name = "dlgPrintPreview"
Me.dlgPrintPreview.Visible = False
'
'dlgPrint
'
Me.dlgPrint.Document = Me.pdocGraph
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(187, 140)
Me.Controls.Add(Me.btnPrintNow)
Me.Controls.Add(Me.btnPrintDialog)
Me.Controls.Add(Me.btnPrintPreview)
Me.Name = "Form1"
Me.Text = "CenterPicture"
Me.ResumeLayout(False)
End Sub
Friend WithEvents btnPrintNow As System.Windows.Forms.Button
Friend WithEvents btnPrintDialog As System.Windows.Forms.Button
Friend WithEvents btnPrintPreview As System.Windows.Forms.Button
Friend WithEvents dlgPrintPreview As System.Windows.Forms.PrintPreviewDialog
Friend WithEvents pdocGraph As System.Drawing.Printing.PrintDocument
Friend WithEvents dlgPrint As System.Windows.Forms.PrintDialog
End Class
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