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Chr converts an ordered data to an ANSI character.Ord converts an ordered type value to its serial number.Round converts a real value to the integer value after rounding.Trunc converts a real value to the integer value after decimal truncation.Int returns the integer part of the floating point.IntToStr converts a value to a stringIntToHex converts a value to a hexadecimal stringStrToInt converts a string to an integer. If the string is not a valid integer, an exception is thrown.StrToIntDef conv

For more detailed tutorial, see: http://www.cnblogs.com/del/category/122614.html Use of Chinese-funded sources in DelphiI. Write RC Script text Use notepad or another text editor to compile a file with the extension ". rc. The format is as follows: AVI silent Animation BITMAP files CURSOR file ICON file WAVE audio files All of the above are standard resource types. You can also customize a type for the resource, for example, "mytype ". However, there are some differences in the call method betwe

Four Excel Access Technologies in Delphi Publisher: Qin fangyu Release Date: 21:26:00Content summary Excel is a very important tool for making Chinese reports,ArticleThis paper introduces and analyzes four types of access to excel by Delphi, including ADO access to excel files, dynamic access to excel files by COM, extended olecontainer access to excel files, and access to excel files by

many attributes and methods. Some attributes and methods will be used in subsequent explanations. The following table lists the main attributes and methods of TCanvas. Table 1 main attributes of TCanvas Attribute Description Brush Paint Brush color or pattern for plotting. (Determines the color and pattern for filling graphical shapes and backgrounds ..) Delphi Syntax:Property brush: tbrush; Cliprect

The form can also be used as a dialog box. In fact, there is no difference between the Delphi Form as a dialog box and the real dialog box. "Real dialog boxIt refers to a dialog box created using a traditional method. It has a resource compiler and a resource script file. In other programming environments, the dialog box is created using this method, delphi does not use the traditional dialog box ). The di

Resolve the swflash. ocx control to a document named pas, encapsulate the file in a package named Delphi ActiveX, and then install it.1. Select component-import component from the menu bar in the Delphi box.2. delphi2010 select import ActiveX control in the pop-up dialog box, install flash and click Next.3. In the pop-up control list, find Shockwave Flash and click Next.4. Check

Delphi uses Tcomm component Spcomm for serial communicationAbsrtact: Using Delphi to develop industrial control system software becomes more and more developer's choice, and serial communication is one of the problems that must be solved in this process. Based on the analysis and comparison of several common serial communication methods, this paper emphatically discusses the method of using Spcomm control t

introduction Marco Cantu is a well-known Delphi expert. He has published a series of "proficient Delphi" books, delphi development manual and e-book proficient Pascal (this e-book is available for free online ). He teaches basic and advanced development skills in Delphi. You can get more information about him through

There are a number of tools for programming in Windows, such as VB,DELPHI,VC and so on. I don't want to discuss this childish question of "What's more specific about them." Anyone who has ever played a DOS program knows that The real core of many languages in DOS is to invoke the assembly interrupt function provided by the system. Under Windows, it became the API we used to talk about. While writing programs in Windows is often called API, language is

The obvious difference between Borland and other software vendors has been in its pragmatic approach-providing the most appropriate and competitive development tool for today's developers, while at the same time guiding them to understand the future of the new technology, and make it believe that their development investment will guarantee the future relevance , adaptable and scalable in an invincible position. This article from a Delphi developer pe

first, the basic knowledge of COM components introduction: 1, what is COM COM is a Microsoft set up a component of the specification, the purpose is to achieve the reuse of components, whether you are in C, DELPHI, VB what language to write, as long as the observance of this specification is COM components, can be invoked between each other. What is this specification, the simplest is to use the interface according to the rules, Microsoft has set a I

declaration: Type Int64 = -9223372036854775808..9223372036854775807; Description: Int64 is a signed integer that is 64-bit stored. This size is already fixed and will not change in future Delphi versions. Functions like IntToStr also support the Int64 type (implemented by overloading). When an integer constant exceeds the maximum value of an integer type, it is cast to the Int64 type. Note: There are no unsigned 64-bit integers in

downloaded on the www.Delphiuser.com website.First, let's talk about free third-party controls (with source code):㈠ interface Style class------------A good software should have an excellent operating interface, I think this should be indisputable. However, the use of C + + programming friends will certainly have such a sigh, make a beautiful and easy to get started interface is too tired (except BCB). But since Delphi was born, all this suddenly chan

After reading the Boulevard to Jane, I found that the book is always talking about a language, or a programming tool--delphi.I have seen some of the blog content in front of my friends may find that I have published a small program with Delphi, in fact, after that also using Delphi to do some programming, small to the calculator, large to the level measurement record software (tabular output and calculation

Source: Internet Weekly Report: Delphi garden. The price of $23 million seems to be a cheap sale. The price is only enough for a movie from Hollywood stars, and the cost of making a second-stream movie is not enough.When I read the news online, I suddenly found a message: Borland Software has sold the codegear development tool department for $23 million. I suddenly realized that Delphi and C ++ Builder are

Tutorial on full solution of Chinese Delphi instances DelphiTutorial Series of books(046)ChineseDelphiInstance full solution tutorial Organize netizens (state)Email:Shuaihj@163.com : PDF Prepared by Zhang Zhiqiang Published by: southern publishing house Publishing date: 2004-01 ISBN: 780660954 Package: Flat Opening: 16 Page count: 462 pages Printed: 1 time Introduction As an excellent object-oriented visual development tool,

Delphi object-oriented programming thoughts DelphiTutorial Series of books(013)《DelphiObject-Oriented Programming ideas Organize netizens (state)Email:Shuaihj@163.com : PDF Author: Liu Yi [Translator's introduction] Book Series name: Borland Core Technology series Press: Machinery Industry Press ISBN: 7111127722 Mounting time: 2003-10-10 Published on: February 1, September 2003 Start: 16 Page number: 476 Version: 1-1 Introduction This is

Delphi 6.02 preemptive research-bizsnap/soap/WebService 4-- Significance of patch 2 # Borland released the second patch for C ++ Builder 6 and Delphi 6. This is a very important patch for Delphi 6. It not only fixes some problems in Delphi 6, but also greatly enhances the functions of

// Replace the General stringVaRReg: tperlregex;BeginReg: = tperlregex. Create (Nil);Reg. Subject: = 'I love Delphi, But Delphi does not love me! ';Reg. RegEx: = 'delphi ';Reg. Replacement: = '◆ ';Reg. replaceall;Showmessage (Reg. Subject); // return: I love Delphi, but ◆ don't love me!Freeandnil (REG );End; // Case i

Borland company recently released its latest version of the Windows Development Tool Delphi 2005, the new software in the same development environment to join the Win32,. Net, Delphi and C # support, while integrating the Borland Application Lifecycle management tools. The new version of Delphi, code-named Diamondback, is designed to support Borland's all-encomp