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Application of Spcomm Control in Delphi Serial Communication 22:20:31 | category: personal diary | report | font size subscriptionApplication of Spcomm Control in Delphi Serial Communication Abstract: The use of Delphi to develop industrial control system software has become the choice of more and more developers, and serial communication is one of the problems
Delphi WebBrowser controls enable thethe bug that appears in use:1, Webbrowser.visible=false;visible property can not make the WebBrowser control is not visible, temporarily replaced with Webbrowser.hide method, webbrowser.hide Hidden Browser, Webbrowser.show Display browser;Added: WebBrowser's onvisible Event Control window is visible or hidden and used as above (does not fire if the visual property is tested for changes)The above supplementary Refe
Delphi Resource document production and use of detailedExcerpt from: http://www.ej38.com/showinfo/delphi-131567.html First, Primer:Now almost all Windows applications use icons, pictures, cursors, sounds, and so on, and we call them resources (Resource). The simplest way to use resources is to put the source files of these resources into the package to make it easier for the program to call when needed. Res
It's also a sense of sorrow. I didn't expect Borland to sell the IDE production line just after the end of the year. It's sad that Borland will not only sell it with no intention, but also feel a little cheap and then fast ...... It seems Borland is always fond of creating legends, and then begins to spoil legends. So are Borland Turbo C/C ++, and so are Delphi. The top compiler manufacturers are now switching ...... I remember that I first wanted
SQL language, as a general structure query language in relational database management system, has been adopted by many database management systems, such as Oracle, Sybase, Informix and other database management systems, which support SQL language. Delphi is compatible with the SQL Language database management system, when using Delphi to develop database applications, we can use SQL language programming, su
Delphi is a new visual programming environment, providing us with a convenient and efficient Windows application development tool. It uses many of the advanced features and design ideas of the Microsoft Windows graphical user interface, using a resilient, reusable, object-oriented programming language (object-oriented Language), the world's fastest editor, and the leading database technology. For the vast number of program developers, the use of
\d matches all numbers, equivalent to [0-9] var Reg:tperlregex; BEGIN REG: = Tperlregex.create (nil); Reg. Subject: = ' expect Delphi 2008 for win32! '; Reg. RegEx: = ' \d '; Reg. Replacement: = '; Reg. ReplaceAll; ShowMessage (Reg. Subject); Return: Look forward to Delphi for Win! Freeandnil (REG); End \d matches all non-numeric, equivalent to [^0-9] var Reg:tperlregex; BEGIN REG: =
4. Truncate method The method is implemented by invoking the BDE API function. It is implemented as follows: Procedure Tblobstream.truncate; Begin If Fopened Then Begin Check (Dbitruncateblob (Fdataset.handle, Frecord, Ffieldno, fposition)); Fmodified: = True; End End This method deletes all data from the current position of the Blob stream and sets the Modify flag fmodified to True. Many parts in Delphi VCL, especially database applications
Delphi Regular Expression Syntax (9): Critical match-also called "Pre-search" and "reverse pre-search"//Match right var reg:tperlregex; begin Reg: = tperlregex.create (nil' Delphi 6; Delphi 7; Delphi 2007; Delphi Net '; Reg. RegEx ' del
Delphi itself is difficult to implement some Very dazzling or flexible animation changes, Flash is to achieve these are more common functions, is there a way to combine Delphi and flash? The answer is yes. How can I use it? (1) install swflash. ocx in Delphi and run flash in other environments.Find it in $ WINDOWS \ SYSTEM \ macromed \ flash in Win98 or in $ winn
{ $ If compilerversion = 1.0 } // Turbo Pascal 1 { $ If compilerversion = 2.0 } // Turbo Pascal 2 { $ If compilerversion = 3.0 } // Turbo Pascal 3 { $ If compilerversion = 4.0 } // Turbo Pascal 4 { $ If compilerversion = 5.0 } // Turbo Pascal 5 { $ If compilerversion = 6.0 } // Turbo Pascal 6 { $ If compilerversion = 7.0 } // Turbo Pascal 7 /Borland Pascal 7 { $ If compilerversion = 8.0 } // Delphi 1 { $ If compilerversion = 9.0
proceeding with the subsequent explanations, I think we should first clear the concept that the routine declares a pointer variable, calling a function/process, actually, it is the Execution Code of the function/process transferred through the pointer.We first try to use Delphi to create a DLL file of our own. This dll contains a standard directory deletion (including subdirectories and files) function. Create DLLIt is easy to create a DLL through
Delphi for the trial version of PHP, you need to pay attention to the official authorization of the trial time, only one day, I have been in business for the first time since 10 to recognize this unique sales style of large companies! Codegear™announces general availability of Delphi®for PHP Developers Say Delphi ' s Rapid application Development environment M
Now, many people in csdn's Delphi are asking some basic questions, so they cannot help but feel a little emotional, not making fun of the questions they have raised, it reminds me of some things I learned about delphi. Although I am not a good expert in Delphi, I have some experience. I remember that the reason I learned Delp
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
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