I have done some really serious refactoring of my text editor. Now there is much less code, and it is much easier to extend the component. I made rather heavy use of OO design, such as abstract classes and interfaces. However, I have noticed a few losses when it comes to performance. The issue is about reading a very large array of recor...
Possible Duplicates: Detect Antivirus on Windows using C# How to detect if a virusscanner and/or firewall is installed? (And a few other security-related Q's.) is there a way to detect currently instaled av without searching for known processes? ...
I am looking for a way to provide a ListSource to a TDBLookupComboBox in delphi without having an actual table on the database server to draw that list from. The DataField for the Combo Box is a 1 character field that contains a coded value such as 'A' = 'Drivers License', 'B' = 'Passport', 'C' = 'Library Card', etc. That is to say that ...
When dealing with buisness classes, like the typical Customer and Employee classes, is it better to use getters and setters only or to use properties? I am translating to Delphi (for self learning) some OO examples from java books, in those examples there is always GetName() and SetName(), properties are not used. Now, I can see that i...
Hi, I have a really simple problem, but I don't find a nice way how I should solve this: I have a TEdit field. When I enter this Edit-Field, I want to show an Panel. When I click on the panel, the panel should hide. When I leave the edit field, the panel also should hide, but I can't use the onExit event of the editField, because this...
After months of frustration and of time spent in inserting needles in voodoo dolls of previous developers I decided that it is better try to refactor the legacy code. I already ordered Micheal Feather's book, I am into Fowler's refactoring and I made some sample projects with DUnit. So even if I don't master the subject I feel it is ti...
Hi! I just wanna to delete from specified text file first N characters, but i'm stuck. Help me please! procedure HeadCrop(const AFileName: string; const AHowMuch: Integer); var F: TextFile; begin AssignFile(F, AFileName); // what me to do next? // ... // if AHowMuch = 3 and file contains"Hello!" after all statements // it m...
I am trying to create a Tclientsocket at runtime but I can't assign the events. I use var cs:TCLIENTSOCKET; procedure OnReadx; begin end; procedure intsok; begin cs:=Tclientsocket.create(nil); cs.OnRead:=OnReadx; end; It doesn't work. what is the right way to do this? ...
I have executed a process using CreateProcess, but I want to fetch or dump the memory area allocated to the process, preferably in real time. Unfortunately I do not know how to recieve the pointer to the memory are after creating the process. I've been searching around, but I have not found any useful answers so far. If anyone could hel...
Shortcut-handling module of my application contains some sort of 'global' hotkeys, that are linked to their own actions in action list in TDataModule. I did so, because it is part of shortcut persistence and editing system I have. So, any TAction I add into some form/frame/datamodule of my application will be processed and viewed in sho...
Hi i don't know how to ask this question. problem is given below. I'm using One Main form and many sub forms but not MDI Forms. Main form Contains 5 Buttons and a Panel. each button will call a form inside that Panel(as Parent). in that sub forms, one form(Sub3) contain TMainMenu component. every form is working correctly while calling...
Very strange thing happening: I had a whole bunch of TFrame's (might have been TCustomFrame, don't remember because I made an intermediate class between the 40 odd frames and the parent) that I was inheriting to make up the configuration part of a 'really cool' HL7 formula editor. What was weird, but not to the point, was that the DFM o...
Hi I am getting the above error on a client's machine when executing the following code for i := 0 to crpe.Subreports.Count - 1 do for j:=0 to crpe.Subreports[i].Tables.Count - 1 do crpe.Subreports[i].Tables[j].Path := path; crpe.Subreports[0]; {This line points the VCL back to the main Report} for i := 0 to crpe.Tabl...
Delphi is a great IDE and compiler. But sometimes it also has a few minor flaws. Like my problem right now... I am working on a project that's created in Delphi 2007. But I like to use Delphi XE simply because the IDE has some interesting features and it happens to be more stable on my computer. So I opened the project in Delphi XE and h...
Hello! I know this message will annoy some people, but anyway... Does anybody know if something is going on with 64bit Delphi? Does Embarcadero or anybody else developing compiler for 64 bit computers? Can we expect something in near future? I looked arround and found very different information, but it would be good to know to be prep...
Hello, I just want to create my own OLE server, which support in-place activation. e.g. In TOlecontrol we can do following: OleContainer1.CreateObject('WORD.Document',FALSE); That is ok. Word document is embeded into the main application form. But when I tried: OleContainer1.CreateObject('Server.MyOleServer',FALSE); MyOleServer is...
I'm trying to implement Jarvis' algorithm for finding the convex hull of a set of points, but for some reason it doesn't work. This is my implementation: procedure TPointList.ConvexHull(aHull : TPointList); //Return the convex hull of a set of 2D points var vPointOnHull : TPoint2D; vEndpoint : TPoint2D; I : intege...
Hoping to find somebody that has experience with services in windows. I am trying to use the NdisProt driver for ethernet adapters in Delphi my_Handle := CreateFile(PChar('\\.\NdisProt'), GENERIC_WRITE or GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); (have tried with \\.\\NdisProt too) After execution my_H...
There is a large project, and I need to see the hierarchy of Units which each file references in it's USES clause. ex. Project Source (program.dpk) HelperUnit Forms ThirdPartyUnit MyUtils MyConsts MyDownload TPShellShoc...
I've got a library that can export the contents of a VCL grid to XLS format. (Not sure which version of XLS format; that's part of the problem.) It usually works just fine, but in some cases, when I open an XLS that was exported by this library in Excel 2007, it says "Excel found unreadable content in '[myfile.xls]'. Do you want to rec...