Although. net assemblies are the best choice for new applications, you may at times need to employ COM objects instead. this walkthrough demonstrates two ways to create COM objects with Visual Basic. net: with and without the com class template.
The easiest way to create COM objects is by using the
COM, a component object model, describes how to create components and how to use components to create applications.
1. advantages of using components:
One advantage of component architecture is that applications can evolve over time. In addition, you can also use components to upgrade existing applications more conveniently and flexibly, such as application customization, Component Libraries, and distributed components.
The advantages of using comp
From Interface to COM + (Part Two)
1. What is COM? What is COM used? How to use COM?
1. COM = Component Object Model (Component Object Model). When you use delphi to create a powerful and easy-to-use software module (or complex computing method, when you want to work with p
A question left at the end of the last article come back and give me a answer. You can see the following figure is clear:
The conclusion is that T1,T2,T3 is three different references, that is to say, in. NET represents three different types, but the three types of GUIDs are the same, because in COM the GUID represents a COM class, and as long as the GUID is the same, then it means a
Article 5: Learn about the historical reasons behind the _ com_ptr_t Design_ Com_ptr_t is a proprietary template class of Microsoft in VC. It encapsulates the QueryInterface (), AddRef (), and Release () operations of IUnknown, and provides some member functions to operate COM interface pointers. At the same time, _ com_ptr_t also simplifies the operations of the COM interface on reference count and query o
In PHP4 (windows), the COM function in the COM function PHP4 (windows) has been writing an excel file into mysql over the past few days. I found an article and searched for the phpx forum. I didn't have this post, post it as follows:
COM functions in PHP4 (windows)
Introduction
COM functions built in PHP4 are quit
COM functions in PHP4 (Windows version) these days have been writing Excel into MySQL, found an article, search the PHPX forum, without this post, put it reprint as follows:
COM functions in the PHP4 (Windows version)
Introduced
COM functions built into the PHP4 are quite attractive for us to develop programs in the Win32 environment, but there is still not
Statement: ThisArticleThis is from http://www.moon-soft.com/doc/51731.htm. if you want to renew it, please refer to the original article.
I often talk about com, but it is always difficult to correctly describe this thing. Therefore, it is necessary to understand it again.
Com -- Component Object Model (Component Object Model) is a set of software development methods and specifications proposed by Micro
Coinitialize;IUnknown;Apartment"Insider of COM Technology", "com Essence", "Insider of COM Technology", "in-depth understanding of COM +"-------------------------------------------Essay Classification-j.com Technology:Http://www.cnblogs.com/Clingingboy/category/198480.htmlInformation about the
PHP can operate COM and DCOM objects on Win32 platforms. 1. I have created a DLL to calculate something. Is there any way to run this DLL in PHP? 2. what does Unsupportedvarianttype: xxxx (0 xxxxx) mean? 3. is it possible to operate on visual objects in PHP? 4. SyntaxHighli
PHP can operate COM and DCOM objects on Win32 platforms. 1. I have created a DLL to calculate something. Is there any way to run this D
I have been writing an excel file into mysql over the past few days. I found an article and searched for the phpx Forum. without this post, I posted it as follows: PHP4 (windows version) COM function introduction built-in in PHP4 COM function is very attractive for developing programs in win32 environment, but there are still not many related technical documents. In this article, we will use three examples
Component-based software development is becoming increasingly popular. Here I will give you some COM-related things I have prepared at school for your reference.I. Components(COM) is a new software development technology developed by Microsoft to make software production in the computer industry more in line with human behavior. Under the COM architecture, people
Overview
If you use ASP to do development, you may have used COM in your ASP page. However, before you develop a COM widget yourself or read a book detailing com, you probably don't fully understand COM, so you can't make the most of it to create your ASP page. Nor do you have a good understanding of the usage document
Http://msdn.microsoft.com/library/chs/default.asp? Url =/library/CHS/vbcn7/html/vaconhowvbinteractswithcomforinheritedobjects. asp
FromPublicThe Visual Basic. Net class is generated in the class, even those created by earlier Visual Basic versions. You can override or reload the attributes and methods of classes inherited from COM objects in the same way as override or reload the attributes and methods of any other base classes. When you have an exis
Prerequisites
Author: caeser2
The code in this article is written using the iso c ++ and. Net V1.1 frameworks (vs 2003), but its principle is suitable for all languages that support. Net frameworks.
I. PrefaceBecause traditional COM technology uses static unmanaged programming while. net uses dynamic hosted programming, this topic is essentially a special case in the interoperability between hosted and unmanaged code. Currently,. Net V2.0 provides the
1, sql2005 download address http://www.jb51.net/softs/2190.html Note, to download the 947M file, the wrong attention
In general, if you are prompted COM + problems in advance, do not wait for installation to the last, and then, I was resolved through the second method, and is suspended after the installation, all normal.
The first type of error appears:
Unable to install and configure assembly errors in the CO
Create | object in this article, we will discuss the following questions:
• Create a simple COM object using C # (using COM's interop attributes).
• Access COM from VC + + client software. The client software uses the TypeLibrary (. tlb file).
For simplicity and convenience for developers to use and test, we used the Northwind database in the default installation of SQL Server database software.
• Modify th
Create | object in this article, we will discuss the following questions:
• Create a simple COM object using C # (using COM's interop attributes).
• Access COM from VC + + client software. The client software uses the TypeLibrary (. tlb file).
For simplicity and convenience for developers to use and test, we used the Northwind database in the default installation of SQL Server database software.
• Modify th
COM functions in PhP4 (Windows)
I have been writing an Excel file into MySQL over the past few days.Article, Search for the phpx Forum. If you do not have this post, post it as follows:
COM functions in PhP4 (Windows)
Introduction
The com function built in PhP4 is developed in Win32 environment.ProgramIt is quite attractive, but there are still not many r
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Windows lets share code at the binary level using DLLs. After all, that's how Windows apps function-reusing Kernel32.dll, User32.dll, etc. But since the DLLs is written to a C interface, they can is only is used by C or languages that understand the C calling con Vention. This puts the burden of sharing on the programming language implementer, instead of the DLL itself.MFC introduced another binary sharing mechanism with MFC extension DLLs. But these is even more restrictive-you can only u
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