1, Automation technology
Automation technology both previously mentioned in OLE Automation. Although automation technology is based on COM, automation is much more extensive than COM applications. On the one hand, automation inherits many of the benefits of COM, such as language-independent, process-transparent, etc., on the other hand, automation simplifies som
threading ubuntures to work together. callamong objects with different threading models in different processes are naturally supported. from the perspective of the calling object, all callto objects outside a process behave identically, no matter how the object being called is threaded. likewise, from the perspective of the object being called, arriving callbehave identically, regardless of the threading model of the caller.
interaction between a client and an out-of-process object is straigh
+ components (XML Web Ser on Microsoft Windows. NET Server and Microsoft®windows®xp Professional) Deployment of the vices release). The example also introduces several new features that enable clients running Windows XP to access XML Web Services on a remote server.
When developers use. NET Remoting and managed code to refine existing unmanaged COM + server and client code, these features help them to lev
a firewall. (using SOAP does not exclude access to the same components on the server through DCOM, which the client computer can select.) For these customers, if you want to use SOAP instead of DCOM, using both the client-agent export and the CAO model requires no changes to the client and server applications. You only need to enable SOAP on the server application, export it as a client agent, and then install the agent on the Windows XP computer tha
OLE Technology, which prescribes how objects communicate with each other, and objects that conform to COM specifications are also called COM objects. According to COM, objects can be written in any language, using interfaces (Interface) to communicate with the outside world. An interface is a set of specific function calls (methods) provided by an object, each o
COM domain name heat does not reduce the accumulation of domain name Investment unlimited business Opportunities
. COM is the world's highest penetration rate in the international top-level domain, in many domain names, it has been recognized by the most popular domain name. This is because this is favored by investors, in many times the rush of domain name registration, almost will have. COM's figure. In
December 17 News, 51.com Chairman and CEO Pang East recently to Sohu it said, after the financial crisis, 51.com do not intend to do Rainbow QQ, but will be the main focus on 51.com of business. At the same time, Sohu it is exclusively informed that the company's business has been reorganized within 51.com.
Subsequent
The COM component has three basic interface classes: iunknown, iclassfactory, and idispatch.The COM specification specifies that all components and interfaces must be inherited from iunknown. iunknown contains three functions: QueryInterface, addref, and release. These three functions are extremely important, and their order cannot be changed. QueryInterface is used to query other interfaces implemented by
Recently, this registry-free COM technology was used in our work, that is, free registration of COM.
The COM component we provide will be used by multiple products, and these products may:
Installed on the same machine
The COM component used is of different versions.
In this way, if you use a common registered
small example of context conversion in the program. If you test this code, it will run, but please
Do not do this within your own application.
Private Sub Dostuff ()
% >
This is End Sub
% >
Programmatic code has some other benefits as well. First you'll find it easier to reuse the parts of the code that are included in the program. Secondly, to
Fewer lines of code are required to achieve the same purpose. Third, you will begin to develop a large reusable code base. At first it's
The form is.
PHP tips-use ADODB through COM. To implement the following functions, make sure that the com. allow_dcom option in php. ini is set to true. 1. prepare to create an ACCESS database named db. mdb.
To implement the following functions, make sure that the com. allow_dcom option in php. ini is set to true.
I. preparations
Although COM technology has not been recommended by Microsoft, I still have a simple record of how to debug a COM component.
It's almost like debugging a normal DLL, a little different.
1. Creating COM components
Now use vs to create COM components is very easy, can use c++/vc++ or C #, indifferent C # to write
: SystemInteractiveEveryoneAdministratorsIUSR _ *IWAM _ **These accounts only exist when Internet Information Server (IIS) is installed on the computer.
11.
Make sure that each user is allowed to access, and then clickOK.
12.
ClickEdit Default Value. Verify that the following users are listed in the startup permission. If not, add these users: SystemInteractiveEveryoneAdministratorsIUSR _ *IWAM _ **These accounts only exist whe
1. coinitialize, coinitialzeex coinitialize and coinitializeex are all windows APIs. They mainly tell windows how to create COM objects for programs. The reason is that the program calls com library functions (except cogetmalloc and memory allocation functions) you must initialize the com library before.
What are the methods? Single-thread and multi-thread.
Coini
"iunknown ". (Note 7)5. Any interface actually contains the iunknown interface. As you access more interfaces, you will be more aware of the "inheritance" of the interface ".6. On any interface, calling the first function in the table is actually calling the QueryInterface () function to obtain another interface pointer you want. This is called "interface transmission"7. If function declaration is required in C/C ++, the component must also provide t
websites. In this way, PHP vulnerabilities will be exposed, especially in the increasingly difficult situation of privilege escalation, I think many servers will fall due to this vulnerability. According to the content published by the Vulnerability discoverer, the vulnerability exploitation requirements include the following settings in php. ini. My test environment is PHP5.2.3 + Apache2.2.3 + Windows XP SP2. In my test, I found that the configuration does not have to be strictly followed. You
In my programming practice, I need to start with the. NET form page passes encrypted string information (such as user name and password) to an ASP page, and then decrypts the encrypted string on that page. If you pass a string that is not encrypted, you can pass it directly through a GET or post and receive it in an ASP page, but the problem is. NET's Web Form page, how can I decrypt it in an ASP by adding a secret string? This is primarily because ASPs do not have direct
Or the Business Rules Layer Component dialog. Because most applications are written separately by ASP, a legitimate problem is:
Why do you want to transfer code to a COM component?
In my opinion, ASP is only used to express layer code, so I choose to use business rule logic or any form of data access
are loaded into the COM component. In general, I've split the
layer
Or the Business Rules Layer Component dialog. Because most applications are written separately by ASP, a legitimate problem is:
Why do you want to transfer code to a COM component?
In my opinion, ASP is only used to express layer code, so I choose to use business rule logic or any form of data access
are loaded into the COM component. In general, I've sp
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