Com - Subscribe to C# .net Event in VB6. C# Com. Download source - 244.0 KB Introduction This example will help you to understand how to implement and use a C# DLL in VB 6.0 code. As C# is an object-oriented language, we can use the object-oriented features to create proper classes in C# DLL. We can use COM Interop or follow the COM Plus Approach to refer to such DLLs in our old VB 6.0 applications. It's like delegating our business logic to this DLL. In this article, I tried to show two different approaches to refer to a C# DLL in VB 6.0.
To create COM Interop By using COM Interop, we create a DLL that can be private or shared. .NET assemblies don't include information in Type Library compatible format. Tlbexp ComInteropExample.DLL /out:ComInteropExample.tlb Once a Type Library has been created, it can be referenced by a COM client to obtain the information necessary for the COM client to bind to the interfaces of the COM class and activate the COM class at runtime. Regasm ComInteropExample.DLL /tlb: ComInteropExample.tlb To create COM+ Understanding Classic COM Interoperability With .NET Applications. (Disclaimer: The information in this article and source code are published in accordance with the Beta 2 bits of the .NET framework SDK - Build 1.0.2914.16) Ever wondered how all those COM components that you've written through the years play along with the .NET runtime. If you are a diehard COM developer interested in knowing how Classic COM Components are positioned in the .NET world or how COM aware clients could consume .NET components, read on.
Contents Introduction After playing around with the .NET Beta 1 & Beta 2 bits, there's no doubt in most developers' mind that the .NET technology is a powerful way to build components and distributed systems for the enterprise. But then, what about the tons of existing reusable COM components that you've built through the last few years, not to mention all those cups of coffee & sleepless nights. Part I : Using Classic COM Components from .NET Applications Getting started: Here's the IDL definition for the IAirlineInfo interface: ....... Accessing .NET Collection in VB6.
VB6 -> VB.Net collection classes - Xtreme .NET Talk. How To Use a .NET Class with Lists in VB6. Introduction NOTE: Not all code is in the page, there are constructors missing and other directives that are available in the download of the project. This article will help you in the special case when you want to use a class "designed" in .NET in VB6 using the "COM class" available in Visual Basic .NET. Background There are still tons of companies trying to move from VB6 to .NET. This can be as easy as run the integrated VS conversion tool or if the company has the resources and time they will decide to do a rewrite. What if this rewrite is in a new architecture, using n-tier and common DLLs that most of the new applications will use, cool... however what if once you finished one of your .NET DLLs, you have to integrate that new library into one of your VB6 apps.
Not really difficult using the "COM class" available in VB.NET and creating a Business Logic layer that calls your component, create a *.tlb file and reference this one in your VB6 project. Using the Code Something like: History. VBRun - Interop Forms Toolkit, Visual Basic 6.0 | MSDN Online. Nutzen Sie die Funktionen von .NET in Visual Basic 6 Mit dem Interop Forms Toolkit können Sie einfach Formulare und User Controls in .NET schreiben und in Visual Basic 6 verwenden. Alle benötigten COM-Interop-Komponenten können mit einem Klick erstellt werden. Die ermöglicht die schnelle Erstellung hybrider Anwendungen. So können Sie schnell und einfach .NET-Methoden, - EIgenschaften und -Events verwenden, die Ihnen bisher in Visual Basic 6 nicht zur Verfügung standen.
Neuerungen in Version 2.1 Mit diesem Release unterstützt das Interop Forms Toolkit sowohl Visual Studio 2005, Visual Studio 2008 wie auch Visual Studio 2010. Beispiel: VB.NET Controls in VB6 verwenden Im Bild unten sehen Sie ein Beispiel, in dem ein Visual Basic 6 Formular ein .NET ToolStrip und einen MenuStrip beinhaltet. Beispiel: Interop Forms Nutzen Sie Ihre Visual Basic 6-Investitionen Erweiterbarkeit Support Das Toolkit wird vom Microsoft Developer Support voll unterstützt. Willkommen in der Welt der VB Programmierung. Willkommen bei ActiveVB. FAQ · Einen Prozess beenden. Using WCF in VB6? - Ali Pasha's WebLog...
One of the demos a peer of mine gave (Johnathan) included creating a .NET form with a Web reference that, using the interop toolkit (just released), could be called from a VB6 app. This is a great scenario because it enables those with a VB6 legacy code base to use some of the cool features in .NET without having to rewrite their VB6 applciations. While I thought that was cool, I wanted to see if the same was possible with WCF in .NET 3.0. As you probably know, the benefit of WCF services is that it highly configurable unlike ASMX in .NET 2.0. The biggest issue in VB 6, however, is to figure out where to add that configuration. The solution is to name the configuration myapp.exe.config and place it right next to the executable, which is simple enough if you publish the VB6 app. What about if you want to debug it from the VB6 IDE? In this case, name the configuration vb6.exe.config and place it right next to the vb6.exe in the VB98 directory.
Actual Steps: Let me know if you have any issues. Drucker ermitteln / Drucker setzen (WMI) Mit den nachfolgenden Klassen lassen sich alle im System installierten Drucker ermitteln, sowie ein bestimmter Drucker systemweit als neuer Standard-Drucker setzen. Das Ganze funktioniert aber erst ab Windows XP, so dass eine enstprechende Betriebssystem-Abfrage erfolgen sollte, was über die OS-Klasse erledigt werden kann. Für den Zugriff auf die WMI-Funktionen von Windows benötigen Sie in Ihrem Projekt zunächst einen Verweis auf das System.Management-Objekt (Projekt - Eigenschaften - Verweise). Erstellen Sie ein neues Projekt, platzieren auf die Form ein ListBox-Control, sowie zwei Schaltflächen (Button1 und Button2) über die die Liste der verfügbaren Drucker geladen bzw. ein neuer Drucker systemweit als Standard-Drucker festgelegt werden kann.
Fügen Sie nun nachfolgenden Code in den Codeteil der Form1 ein: ' Benötigte zusätzliche VerweiseImports System.Management ' WMIImports System.Collections.Specialized ' StringCollectionImports System.Environment ' OS Public Class Form1 End Class. A Thread to Visual Basic: Multi-Threading In VB5 and VB6.
Author: Daniel Appleman Version Compatibility: Instructions: Copy the declarations and code below and paste directly into your VB project. A Thread to Visual Basic Reprinted with Permission from Desaware Contents: You can download the sample code from ftp.desaware.com/SampleCode/Articles/Thread.zip Just because you can do something, doesn't always mean that you should. With the appearance of the AddressOf operator, an entire industry has developed among authors illustrating how to do previously impossible tasks using Visual Basic.
The problem is not in Visual Basic or in the technology. Worse yet, just as companies often neglect to mention the limitations and disadvantages of their tools, authors sometimes fail to stress the consequences of some of the techniques that they describe. As a programmer, it is important to choose the right tool for the job. A Quick Review of Multithreading Everyone who uses Windows knows that it is able to do more than one thing at a time. It could be: or perhaps: