Hi there, I have a Delphi 2009 application that is attempting to open an ADO connection (dbGo) to a Microsoft Access .MDB file in cmShareDenyWrite mode, using the Jet 4.0 OLE DB provider. The goal is to open the .MDB file in read/write mode, but to prevent other applications from opening the file in write mode: Other applications access...
I was working in a simulator for testing connections and commands sending to a server. The simulator has some counters like Total of sent commands, successfully sent commands, fail sent commands, connection attempts, successful connections, etc... The code that I used is the following: procedure TALClient.SendCommand; begin Try d...
I have an automation object with event support that leaks memory. The FConnectionPoints which comes with the generated source is never freed. When I manually add FConnectionPoints.Free in the destructor, the leak goes away. Is this a bug in the Delphi code template, am I doing someting wrong, or is it intended to free FConnectionPoints ...
I want to upgrade my application from Indy 9 to 10 with Delphi 2007. Now this don't compile anymore as DecodeToStream is not found. The code use Bold framwork as there is reference to BoldElement. Any alternative methods to call ? UPDATE (I think I simplify previous example too much) Original code: BlobStreamStr : String; M...
First of all (before this question get down voted): I am a developer developing 99,99% of my programs using Delphi targeting Win32 (developing in Delphi 7 still, very slowly migrating to Delphi 2010). When Delphi 2006 or 2007 (can't remember which version at the moment) came out I bought the RAD Studio edition to be able to start develo...
I'm developing a program that needs to parse the file name into a TTextField. How to remove the file extension I've already know(or think that I can do like this): var FName: String; FPath: String; begin FPath := OpenDialog1.FileName; FName := ChangeFileExt(FPath, ''); end; But how can I remove the file path from FName? ...
I am working in Delphi 5 (with FastMM installed) on a Win32 project, and have recently been trying to drastically reduce the memory usage in this application. So far, I have cut the usage nearly in half, but noticed something when working on a separate task. When I minimized the application, the memory usage shrunk from 45 megs down to...
I am currently working with 'inherited' code that has (scattered randomly throughout) a whole bunch of conditional compiler directives based on the version of Delphi, going back to Delphi 2 . From now on, all development will be with Delphi 2009 or future. Is there a tool in Delphi 2009 , or a plugin, that will automatically remove comp...
what is the comparison of programming language java and delphi? ...
Hi, I usualy use DSpack or DCAVIPlayer components to play divx avi videos in delphi 5.0. Those two components are not compatible with windows vista. Both give run time error when you try to play the video. Any body know a vista compatible delphi 5.0 component? Thanks ...
I'm looking for a cache implementation for the Indy IdHTTP component that would be used for checking of a specific resource is already cached before doing the actual GET and returning the cached resource instead (if appropriate)? If the component would be a derived class from TIdHTTP and handle the cache-features automatically it would ...
Hi, My application sits in the system tray when it's not being used. The user can configure events to occur at particular schedule. For example they may way the task performed mon-fri at 5pm or every wednesday at 3pm or on the 16th of every month at 10am. Assuming my delphi program is always running, it starts at boot-up, what is the...
I'm developing a rather complex application with both win32 and web access. Server side implementation is custom, and it's going to be hosted in our company. The HTTP server could be implemented as a stand alone Indy (or another) HTTP server or more traditionally with Apache/IIS. I'd like to know what are the advantages/disadvantages of...
I have two string lists that I'm working with. One that has a list of keywords, and then another that has a list of negative keywords. I want to be able to search through the list and pick out the list items that do not contain the negative keyword and output to a third keyword list. I was using the AnsiPos function but that found the...
I'm looking for a VCL component for C++ builder. It should preferably have a toolbar with drag & drop functionality. I want to define a building or area (which might not be rectangular) and split it into "rooms" (or areas, or whatever you want to call them). And I want to be able to put "doorways" (or passages, etc) from a room into its...
What are the differences between SQLite and DISQLite and why would I want to pick one over the other? My context is that I am dealing with a large database (could be up to 10 GB), the critical part of which is in one very simple table with a single indexed field and one text field up to a few KB in size. My development tool is Delphi 2...
I want to upgrade my application from Indy 9 to 10 with Delphi 2007. In this thread there is a call to Indy9 TIdUDPBase.SendBuffer but this won't compile in Indy10 as the method parameter don't exists. The third parameter aBuffer is a var parameter and I didn't find any such method signature in Indy10. Any alternative method to call ? ...
Some time ago I asked about how to pop up the Windows context (right-click) menu for a certain file in Delphi. However, even if everything works (almost) OK, the 'Send to...' and 'Open with...' submenus don't have any items, even if when I right-click in Explorer on the same file name they work OK. (For example, 'Send to...' has 'Desktop...
Hello Folks, json support is one of the new features of delphi 2009 and delphi 2010. I want to know if it's there any simple function to marshalling/unmarshalling directly between string and object like in superobject library. Example: MyKnownObject := FromJSON('{name:"francis", surname:"lee"}'); ...
Hi guys. I need an advice in problem with TFieldDef. I need to add one additional string property to the TFieldDef called Description. I want to see that property when I iterate over TFieldDefs collection. How to do this in Delphi 2007? Thanks for your time. ...