printtextform.vb

Mastering VBNet Include Source Code

Public Class PrintTextForm
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.

    Private WithEvents TextBox1 As System.Windows.Forms.TextBox
    Private WithEvents Button1 As System.Windows.Forms.Button
    Private WithEvents PrintDocument1 As System.Drawing.Printing.PrintDocument
    Private WithEvents PrintPreviewDialog1 As System.Windows.Forms.PrintPreviewDialog
    Friend WithEvents PageSetupDialog1 As System.Windows.Forms.PageSetupDialog

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.Container

    '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()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(PrintTextForm))
        Me.PrintDocument1 = New System.Drawing.Printing.PrintDocument()
        Me.PrintPreviewDialog1 = New System.Windows.Forms.PrintPreviewDialog()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.PageSetupDialog1 = New System.Windows.Forms.PageSetupDialog()
        Me.SuspendLayout()
        '
        'PrintDocument1
        '
        '
        'PrintPreviewDialog1
        '
        Me.PrintPreviewDialog1.AutoScrollMargin = New System.Drawing.Size(0, 0)
        Me.PrintPreviewDialog1.AutoScrollMinSize = New System.Drawing.Size(0, 0)
        Me.PrintPreviewDialog1.ClientSize = New System.Drawing.Size(400, 300)
        Me.PrintPreviewDialog1.Enabled = True
        Me.PrintPreviewDialog1.Icon = CType(resources.GetObject("PrintPreviewDialog1.Icon"), System.Drawing.Icon)
        Me.PrintPreviewDialog1.Location = New System.Drawing.Point(88, 88)
        Me.PrintPreviewDialog1.MaximumSize = New System.Drawing.Size(0, 0)
        Me.PrintPreviewDialog1.Name = "PrintPreviewDialog1"
        Me.PrintPreviewDialog1.Opacity = 1
        Me.PrintPreviewDialog1.TransparencyKey = System.Drawing.Color.Empty
        Me.PrintPreviewDialog1.Visible = False
        '
        'Button1
        '
        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(576, 416)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(150, 32)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Preview && Print "
        '
        'TextBox1
        '
        Me.TextBox1.Font = New System.Drawing.Font("Verdana", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.TextBox1.MaxLength = 0
        Me.TextBox1.Multiline = True
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
        Me.TextBox1.Size = New System.Drawing.Size(728, 408)
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = "TextBox1"
        '
        'PrintTextForm
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(728, 453)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.TextBox1})
        Me.Name = "PrintTextForm"
        Me.Text = "Printing Text Demo"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub PrintDocument1_PrintPage(ByVal sender As Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
        Static currentChar As Integer
        Dim txtFont As New Font("Arial", 10)
        Dim txtH, txtW As Integer
        Dim LMargin, TMargin As Integer
        With PrintDocument1.DefaultPageSettings
            txtH = .PaperSize.Height - _
                   .Margins.Top - .Margins.Bottom
            txtW = .PaperSize.Width - _
                   .Margins.Left - .Margins.Right
            LMargin = PrintDocument1.DefaultPageSettings.Margins.Left
            TMargin = PrintDocument1.DefaultPageSettings.Margins.Top
        End With
        If PrintDocument1.DefaultPageSettings.Landscape Then
            Dim tmp As Integer
            tmp = txtH
            txtH = txtW
            txtW = tmp
        End If

        Dim linesperpage As Integer = txtH / txtFont.Height
        Dim R As New RectangleF(LMargin, TMargin, txtW, txtH)
        Dim lines, chars As Integer
        Dim fmt As New StringFormat(StringFormatFlags.LineLimit)
        e.Graphics.MeasureString(Mid(textToPrint, currentChar + 1), txtFont, New SizeF(txtW, txtH), fmt, chars, lines)
        e.Graphics.DrawString(Mid(textToPrint, currentChar + 1), txtFont, Brushes.Black, R, fmt)
        currentChar = currentChar + chars
        If currentChar < textToPrint.Length Then
            e.HasMorePages = True
        Else
            e.HasMorePages = False
            currentChar = 0
        End If
    End Sub

    Dim textToPrint As String

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        textToPrint = TextBox1.Text
        PageSetupDialog1.PageSettings = PrintDocument1.DefaultPageSettings
        If PageSetupDialog1.ShowDialog() = DialogResult.OK Then
            PrintDocument1.DefaultPageSettings = PageSetupDialog1.PageSettings
        End If
        Try
            PrintPreviewDialog1.Document = PrintDocument1
            PrintPreviewDialog1.ShowDialog()
        Catch exc As Exception
            MsgBox("Print operation failed " & vbCrLf & exc.Message)
        End Try
    End Sub

End Class