Label:MySQL: @variable vs. variable. Whats the difference?
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In another question I posted someone told me, there is a difference between:@variableAnd:variableIn MySQL. He also mentioned how MSSQL have batch scope and MySQL has session scope. Can someone elaborate on this for me?
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MySQLHas the concept of u
During secondary development based on AutoCAD, common tutorials are about defining some custom commands in the DLL, and then loading the DLL using the netload command, execute custom commands to execute custom functions. This method is very simple in learning, but it is too amateur to use it in formal products without professionalism. Of course, more professional is of course the same as AutoCAD, providing
1... Net-based development(1). Net API IntroductionIn AutoCAD 2006 and later versions, Autodesk added. Net API for its development .. . Net API provides a series of managed outsourcing classes (managed Wrapper class), allowing developers.. NET Framework.. NET language, such as VB.. net, C #, and managed C ++. Its advantage is completely object-oriented.(2) Main differences between. Net APIs and traditional ObjectARX APIsFirst, in the VC environment,Pr
Q: How do I use the callout style of the current graphic in other files?
There is an import and export feature of annotation styles in A:cad, and you can use the annotation style import and export function to refer to the callout style in the current graphic in a new shape. Here we take AutoCAD R14 as an example to describe the specific operation process.
AutoCAD R14 has an "
Using C # For secondary development of AutoCAD (1)
As we all know, the main tools used for secondary development of AutoCAD are ObjectARX, VBA, and vlisp. But their advantages and disadvantages are obvious: ObjectARX has powerful functions and high programming efficiency, but its disadvantage is that programmers must master VC ++, which is very difficult to learn; although VBA and vlisp are simple and eas
as we all know, the main tools used to develop AutoCAD for two times are: Objectarx,vba,vlisp. But their advantages and disadvantages are obvious: Objectarx powerful, high programming efficiency, but its disadvantage is that programmers must master VC + +, and the language is very difficult to learn; VBA and Vlisp are easy to get started with, but they seem powerless to develop large programs. Is there a language that can combine their merits and try
1.4.1 Start AutoCAD
First, we introduce how to enter the graphical interface of AutoCAD. Select the "AutoCAD 2000" package in the operating system "start" menu (WINDOWS95/98 or WindowsNT4.0) and select "AutoCAD 2000", and AutoCAD will display the Startup dialog box as shown
I found that as the last speaker will have some advantages, because we can use more time to give you the most important Autodesk products, namely AutoCAD. It is not too much to say that AutoCAD is the most important product of Autodesk, because its history is as long as that of Autodesk company, since the first version has been developed for 25 years, in other words, there have been 1/4 of centuries of time
Hello everyone, today I will continue to introduce you to the secondary development of AutoCAD using C. This section describes the problems in the previous example.
In the previous example, I used to reference the AutoCAD 2004 Type Library for communication between C # and AutoCAD, but this method has two fatal disadvantages. The first drawback is that each d
AutoCAD two times Development--autocad.net API Development Environment ConstructionAutoCAD two times Development--autocad.net API Development Environment ConstructionAutoCAD Two-time development tool: 1986 autolisp,1989 ads,1990 year dcl,1993 ads-rx,1995 year objectarx,1996 year active X Automation (COM), 1997 VBA, 1998 Visual lisp,2006. NET API (DLL).Trend and direction: Autocad.net API (AutoCAD2006 appears, form is called DLL plugin with netload)ACA
Hello everyone, today I continue to introduce you to use C # for AutoCAD two development. In this lecture, we mainly introduce the problems in the previous example.
In the last example, I used the AutoCAD-Type library to communicate between C # and AutoCAD, but this approach has two fatal drawbacks. The first drawback is that every time you debug the program, C
The current popular development of AutoCAD tools, one is Objectarx, and the other is AutoCAD with VBA (AutoCAD built-in Visual Lisp was also counted as a, but it can only develop a few small programs, so it can not be compared with the previous two tools). But both have obvious deficiencies, to VC + + based on the development of the function of Objectarx is very
All versions of AutoCAD for Windows support the setting for default save as format, which is the format for modifying the defaults saved file in the OP settings for file interaction between different working environments. But AutoCAD2013 for Mac does not have this setting option, so that for a long time, every time to give someone to send a diagram, you need to use "Save as", and then choose the low version format, and then save, very inconvenient. So
1, CAD object: A CAD file (DWG file) that corresponds to a database, all components of the database, see (including points, polylines, text, circles, etc.) and invisible (layer, line, color, etc.) are objects, the database itself is an object.
Graphic objects such as lines, arcs, text, and callouts are objects.
Style settings, such as Linetype and dimension styles, are objects.
Organizational structures such as layers, groups, and blocks are objects.
Graphical displays, such
I recently did some research on integration of Salesforce and AutoCAD WS. I wrote two articles earlier and published a series of English articles on ADN DevBlog. Post it now. If you are interested, please leave a message for me:
Getting started with Salesforce Development
Salesforce.com + AutoCAD WS Integration Research part2
Set up development environment and hello world environment Settings, getting star
In a technical forum to see a friend mentioned such a question: how quickly in AutoCAD to draw multiple concentric circles? To this question Netizen's answer is various, has the reply to say with the deviation command, has the answer with the array ... Of course, there are friends. Presents a more practical VBA solution and AutoLisp solution.
I think that the use of VBA or AutoLisp as a solution is of course a very good way, but since the landlord ra
In this chapter, we will use Visual Studio. NET to create a new class library project. Through this project, you can create a. Net DLL file that can be loaded by AutoCAD. This DLL file will add a new command named "helloworld" to AutoCAD. After you run this command, the "Hello World" text is displayed on the AutoCAD command line.1) create a class library.
2)
As we all know, the main tools used in two development of AutoCAD are: Objectarx,vba,vlisp. But their advantages and disadvantages are obvious: Objectarx powerful, high programming efficiency, but its disadvantage is that programmers must master VC + +, and this language is very difficult to learn; While VBA and Vlisp are easy to start with, they seem powerless to develop large programs. Is there a language that can combine their merits and avoid thei
Using C # For secondary development of AutoCAD (3) (transferred from mingjing channel)
The main content of this lecture is to introduce the AutoCAD Object Model. If you understand the development of AutoCAD in VBA, this part of content should be super simple.An object is the main construction block of the AutoCAD Activ
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