what com interface

Just read the Anders PDC Talk, I feel the change of C # 4.0 is not very big, but many changes are convenient for users, some even the original Anders did not want to join the function finally because the user's voice finally added (such as Optional

Recently a collaborative 973 project that needs to call someone else's interface. The other side gave a DLL file and function interface description, and then I looked through the traditional generated dll,loadlibrary to find function pointers,

Asp.net| Architecture Enter. NET runtime's real portal occurs in some classes and interfaces that are not documented (translated: Of course, you can look at J with reflector). Few people know about these interfaces except Microsoft, and Microsoft's

Our lives are full of abstraction. As a developer, if we don't understand the abstract definition to use it, it usually gets us into trouble. Abstractions are sometimes fragmented and cannot completely hide the underlying complexity. Don't get me

When the Helper House (www.bkjia.com) Tutorial uses JavaScript to call COM to pass arrays, the COM interface receives VARIANT objects, such as array, the vt type VT_DISPATCH of the object, therefore, the value indicates an IDispatch pointer. The

Document directory Delphi4 Programming Technology insider Delphi4 Programming Technology insider DelphiTutorial Series of books(110)《Delphi4Programming Technology insider Organize netizens (state)Email:Shuaihj@163.com : Download Original Title:

Basic Principles of connectable objects and connection points In order to provide greater interaction between the component object and the customer, the component object also needs to actively communicate with the customer. The Component Object

As we all know, since the Office interface is com CodeTo operate and access the office, you must use InterOP assembly. Since Office XP, Microsoft has provided a dedicated primary InterOP assembly (PIA) for. Net to access the Office COM interface.

I. red exclamation mark1. ABR: Array bounds readArray out-of-bounds read (only the array allocated by dynamic memory is detected, and the global, local, and static arrays cannot be detected ).2. ABW: Array Bounds WriteArray out-of-bounds write (only

  C ++Implementation and reflection of polymorphism Technology Author: Yang ximin Meng Yan Source: programmer magazine Object-oriented technology first appeared in the Simula 67 System in the 1960 s, and developed well in the Smalltalk system

Two operations: Create and parse the COM component. Header functions to be added for ishelllink and ipersistfile Shobjidl. hipersistfile mainly uses two member functions: 1. Save. Save the content to the file 2. Load. Read Load function

The latest data development technology ole db provided by Microsoft is built on the COM interface. Because ole db is very convenient to develop databases and has fast access to databases, it has become the preferred technology for many commercial

  I have been studying DirectShow for several days. I will write down my learning experience and hope to help others. Filter is actually a COM component, so you should have a little understanding of COM before learning to develop filter.

MSN windowless RichEdit actually uses the COM interface to give an article. Introduction to the windowless RichEdit It is a little-known fact that the RichEdit from version 2.0 onwards comes with a COM interface to drive it. to use this interface,

From: http://dev.yesky.com/117/2482617.shtmlWindows Script Host programming Author: Zheng jianbiao Source: Tianji development responsibility Editor: Fangzhou 　　 1. Introduction Wsh stands for Windows Script Host and is an independent scripting

 Text-to-speech tutorial original text: From sapi5.1 Translation: seasun/openpaper/Google Forum Date: This article introduces a basic text-to-speech conversion application example. This is an example of a console-based speech program. In another

PrefaceSince Microsoft announced the COM technology for the first time in 1993, the development model on the Windows platform has undergone great changes. A series of software componentization technologies based on COM have brought Windows

The object-oriented idea is difficult to adapt to this distributed software model, so the idea of componentized programming has developed rapidly. According to the idea of componentized programming, complex applications are designed into small,

Only VC provides corresponding APIs and classes to operate BMP bitmaps, icons, and (enhancement) metafiles, but does not support images in JPG, GIF, and PNG formats, these formats are often used. Here we will introduce two methods to operate images

To implement an ActiveX control using C #, three problems must be solved: 1. Enable the. NET component to be called by com 2. After registering on the client, ActiveX control can pass IE Security Authentication. 3. When the client is not