/ Snippet Library - View Code

Snippet details

ID: 426

Viewed: 1224

Added: 2002-08-19

Version:

Snippets in this catagory
Show Printable Version

The RichTextBox provides you with a simple printing function, but this tip shows you how to add margins to your print outs for a more professional look.
Press the Print command button. Note that the printed output should word-wrap at the same locations as displayed on the screen. Also, the output should be printed with the specified one-inch margin all around.

******
works, but remeber to change the RichTextBox to what your box it named
******

General Details

Snippet uploaded by: snippet

Email : webmaster@snippetlibrary.com

Snippet By: Unknown

Snippet By:	Unknown
Declarations
Highlight All'====================== 'Add this code to a module: '====================== Option Explicit Private Type Rect Left As Long Top As Long Right As Long Bottom As Long End Type Private Type CharRange cpMin As Long ' First character of range (0 for start of doc) cpMax As Long ' Last character of range (-1 for end of doc) End Type Private Type FormatRange hdc As Long ' Actual DC to draw on hdcTarget As Long ' Target DC for determining text formatting rc As Rect ' Region of the DC to draw to (in twips) rcPage As Rect ' Region of the entire DC (page size) (in twips) chrg As CharRange ' Range of text to draw (see above declaration) End Type Private Const WM_USER As Long = &H400 Private Const EM_FORMATRANGE As Long = WM_USER + 57 Private Const EM_SETTARGETDEVICE As Long = WM_USER + 72 Private Const PHYSICALOFFSETX As Long = 112 Private Const PHYSICALOFFSETY As Long = 113 Private Declare Function GetDeviceCaps Lib "gdi32" ( _ ByVal hdc As Long, ByVal nIndex As Long) As Long Private Declare Function SendMessage Lib "USER32" Alias "SendMessageA" _ (ByVal hWnd As Long, ByVal msg As Long, ByVal wp As Long, _ lp As Any) As Long Private Declare Function CreateDC Lib "gdi32" Alias "CreateDCA" _ (ByVal lpDriverName As String, ByVal lpDeviceName As String, _ ByVal lpOutput As Long, ByVal lpInitData As Long) As Long Public Function WYSIWYG_RTF(RTF As RichTextBox, LeftMarginWidth As Long, _ RightMarginWidth As Long) As Long Dim LeftOffset As Long, LeftMargin As Long, RightMargin As Long Dim LineWidth As Long Dim PrinterhDC As Long Dim r As Long ' Get the offset to the printable area on the page in twips LeftOffset = Printer.ScaleX(GetDeviceCaps(Printer.hdc, _ PHYSICALOFFSETX), vbPixels, vbTwips) ' Calculate the Left, and Right margins LeftMargin = LeftMarginWidth - LeftOffset RightMargin = (Printer.Width - RightMarginWidth) - LeftOffset ' Calculate the line width LineWidth = RightMargin - LeftMargin ' Create an hDC on the Printer pointed to by the Printer object ' This DC needs to remain for the RTF to keep up the WYSIWYG display PrinterhDC = CreateDC(Printer.DriverName, Printer.DeviceName, 0, 0) ' Tell the RTF to base it's display off of the printer ' at the desired line width r = SendMessage(RTF.hWnd, EM_SETTARGETDEVICE, PrinterhDC, _ ByVal LineWidth) ' Abort the temporary print job used to get printer info Printer.KillDoc WYSIWYG_RTF = LineWidth End Function Public Sub PrintRTF(RTF As RichTextBox, LeftMarginWidth As Long, _ TopMarginHeight, RightMarginWidth, BottomMarginHeight) Dim LeftOffset As Long, TopOffset As Long Dim LeftMargin As Long, TopMargin As Long Dim RightMargin As Long, BottomMargin As Long Dim fr As FormatRange Dim rcDrawTo As Rect Dim rcPage As Rect Dim TextLength As Long Dim NextCharPosition As Long Dim r As Long ' Start a print job to get a valid Printer.hDC Printer.Print Space(1) Printer.ScaleMode = vbTwips ' Get the offsett to the printable area on the page in twips LeftOffset = Printer.ScaleX(GetDeviceCaps(Printer.hdc, _ PHYSICALOFFSETX), vbPixels, vbTwips) TopOffset = Printer.ScaleY(GetDeviceCaps(Printer.hdc, _ PHYSICALOFFSETY), vbPixels, vbTwips) ' Calculate the Left, Top, Right, and Bottom margins LeftMargin = LeftMarginWidth - LeftOffset TopMargin = TopMarginHeight - TopOffset RightMargin = (Printer.Width - RightMarginWidth) - LeftOffset BottomMargin = (Printer.Height - BottomMarginHeight) - TopOffset ' Set printable area rect rcPage.Left = 0 rcPage.Top = 0 rcPage.Right = Printer.ScaleWidth rcPage.Bottom = Printer.ScaleHeight ' Set rect in which to print (relative to printable area) rcDrawTo.Left = LeftMargin rcDrawTo.Top = TopMargin rcDrawTo.Right = RightMargin rcDrawTo.Bottom = BottomMargin ' Set up the print instructions fr.hdc = Printer.hdc ' Use the same DC for measuring and rendering fr.hdcTarget = Printer.hdc ' Point at printer hDC fr.rc = rcDrawTo ' Indicate the area on page to draw to fr.rcPage = rcPage ' Indicate entire size of page fr.chrg.cpMin = 0 ' Indicate start of text through fr.chrg.cpMax = -1 ' end of the text ' Get length of text in RTF TextLength = Len(RTF.Text) ' Loop printing each page until done Do ' Print the page by sending EM_FORMATRANGE message NextCharPosition = SendMessage(RTF.hWnd, EM_FORMATRANGE, True, fr) If NextCharPosition >= TextLength Then Exit Do 'If done then exit fr.chrg.cpMin = NextCharPosition ' Starting position for next page Printer.NewPage ' Move on to next page Printer.Print Space(1) ' Re-initialize hDC fr.hdc = Printer.hdc fr.hdcTarget = Printer.hdc Loop ' Commit the print job Printer.EndDoc ' Allow the RTF to free up memory r = SendMessage(RTF.hWnd, EM_FORMATRANGE, False, ByVal CLng(0)) End Sub
Code
Highlight All'================================================= 'Add this code to a form: '================================================= Option Explicit Private Sub Form_Load() Dim LineWidth As Long ' Set the font of the RTF to a TrueType font for best results RichTextBox1.SelFontName = "Arial" RichTextBox1.SelFontSize = 10 ' Tell the RTF to base it's display off of the printer LineWidth = WYSIWYG_RTF(RichTextBox1, 1440, 1440) '1440 Twips=1 Inch ' Set the form width to match the line width Me.Width = LineWidth + 200 End Sub Private Sub Form_Resize() ' Position the RTF on form RichTextBox1.Move 100, 500, Me.ScaleWidth - 200, Me.ScaleHeight - 600 End Sub Private Sub Command1_Click() ' Print the contents of the RichTextBox with a one inch margin PrintRTF RichTextBox1, 1440, 1440, 1440, 1440 ' 1440 Twips = 1 Inch End Sub

No Reviews to show