Robert Robbins - ASP.NET Runtime Callable Wrapper for aspPrint COM

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A Runtime Callable Wrapper (RCW) is a special .NET proxy class that allows
ASP.NET to use old COM components. If you would like to use the aspPrint.dll
server component in ASP.NET, follow these steps:

1. In Visual Studio.NET, select Project | Add Reference from the menu and then
select the COM tab to display a list of currently installed COM objects

2. Double click aspPrint.dll in the listing. Visual Studio.NET will create two files
in the bin directory of your web application: Interop.aspPrint.dll and
Interop.VBRUN.dll

3. You can now create an aspPrint.ServerPrint object and Visual Studio.NET's
IntelliSense will recognize all its properties and methods.

aspPrintTest.aspx

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="aspPrintTest.aspx.vb" Inherits="experiments.aspPrintTest"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

	<title>aspPrint Test</title>

	<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1">

	<meta name="CODE_LANGUAGE" content="Visual Basic .NET 7.1">

	<meta name="vs_defaultClientScript" content="JavaScript">

	<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">

</HEAD>

<body MS_POSITIONING="GridLayout">

<h1 style="FONT-FAMILY: Arial">aspPrint Test</h1>

<form id="Form1" method="post" runat="server">

<asp:Button id="cmdButton" style="Z-INDEX: 101; LEFT: 54px; POSITION: absolute; TOP: 171px" runat="server" Text="Execute aspPrint"></asp:Button>

</form>

</body>

</HTML>

aspPrintTest.aspx.vb

Public Class aspPrintTest

	Inherits System.Web.UI.Page



	Protected WithEvents cmdButton As System.Web.UI.WebControls.Button



#Region " Web Form Designer Generated Code "



	'This call is required by the Web Form Designer.

	<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()



	End Sub

	Protected WithEvents Button1 As System.Web.UI.WebControls.Button



	'NOTE: The following placeholder declaration is required by the Web Form Designer.

	'Do not delete or move it.

	Private designerPlaceholderDeclaration As System.Object



	Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init

		'CODEGEN: This method call is required by the Web Form Designer

		'Do not modify it using the code editor.

		InitializeComponent()

	End Sub



#End Region



	Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

		'Put user code to initialize the page here

	End Sub



	Private Sub cmdButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdButton.Click

		Dim objP As New aspPrint.ServerPrint

		objP.setPrinter = "Canon BJC-4300"

		objP.setPaperSize = 1

		objP.setOrientation = 1

		objP.setColorMode = 1

		' You must call setDocument after setting all the document properties

		objP.setDocument()

		objP.setForeColor = Microsoft.VisualBasic.RGB(0, 0, 0)

		objP.setFont = "Courier"

		objP.setFontSize = 14

		objP.setFontBold = False

		objP.setFontItalic = True

		objP.setFontUnderline = False



		' This lengthy line demonstrates the new word wrapping feature

		Dim strText As String

		strText = "Runtime Callable Wrapper (RCW) is a special .NET proxy class that sits between your code and the COM component."

		objP.doPrint(strText)



		' You must call endDocument when you are ready to print

		objP.endDocument()

	End Sub

End Class

web design by Robert S. Robbins