Private Sub PrintDocument1_PrintPage(ByVal sender As Object, ByVal e As_ System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage 'PrintPage is the foundational printing event. This event gets fired for every ' page that will be printed Static intCurrentChar As Int32 ' declaring a static variable to hold the position of the last printed char Dim font As New Font("Verdana", 14) ' initializing the font to be used for printing Dim PrintAreaHeight, PrintAreaWidth, marginLeft, marginTop As Int32 With PrintDocument1.DefaultPageSettings ' initializing local variables that contain the bounds of the printing area rectangle PrintAreaHeight = .PaperSize.Height - .Margins.Top - .Margins.Bottom PrintAreaWidth = .PaperSize.Width - .Margins.Left - .Margins.Right ' initializing local variables to hold margin values that will serve ' as the X and Y coordinates for the upper left corner of the printing ' area rectangle. marginLeft = .Margins.Left marginTop = .Margins.Top ' X and Y coordinate End With
If PrintDocument1.DefaultPageSettings.Landscape Then Dim intTemp As Int32 intTemp = PrintAreaHeight PrintAreaHeight = PrintAreaWidth PrintAreaWidth = intTemp ' if the user selects landscape mode, swap the printing area height and width End If
Dim intLineCount As Int32 = CInt(PrintAreaHeight / font.Height) ' calculating the total number of lines in the document based on the height of ' the printing area and the height of the font Dim rectPrintingArea As New RectangleF(marginLeft, marginTop, PrintAreaWidth, PrintAreaHeight) ' initializing the rectangle structure that defines the printing area Dim fmt As New StringFormat(StringFormatFlags.LineLimit) 'instantiating the StringFormat class, which encapsulates text layout information Dim intLinesFilled, intCharsFitted As Int32 e.Graphics.MeasureString(Mid(RichTextBox1.Text, intCurrentChar + 1), font,_ New SizeF(PrintAreaWidth, PrintAreaHeight), fmt, intCharsFitted, intLinesFilled) ' calling MeasureString to determine the number of characters that will fit in ' the printing area rectangle e.Graphics.DrawString(Mid(RichTextBox1.Text, intCurrentChar + 1), font,_ Brushes.Black, rectPrintingArea, fmt) ' print the text to the page intCurrentChar += intCharsFitted 'advancing the current char to the last char printed on this page < TextBox1.Text.Length Then If intCurrentChar e.HasMorePages=True 'HasMorePages tells the printing module whether another PrintPage event should be fired Else e.HasMorePages = False intCurrentChar = 0 End If End Sub
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