Questions tagged as 'delphi'

Tagged questions
2
answers

Format CustomFormat value in LiveBinding

I'm having trouble trying to use the CustomFormat property of LiveBinding , I'm trying to format a value obtained from the database into the number format with a thousand separator. I'm using: Format('%d',[Self.Owner.FieldByName('som...
asked by 19.02.2015 / 17:13
2
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Communication between applications using socket through UDP doing Multicast

I'm trying to make the communication between applications where one of them transmits a certain message and the others only receive, I do not know the IP address of the ones they will receive and they will not even be there to receive the messag...
asked by 05.03.2014 / 23:49
1
answer

How to disable and enable a network adapter with Delphi?

I have an application that at some point should disable and enable the Windows network adapter, I searched the internet, but I did not find anything. Test before posting a response because dubious information only slows down my work.     
asked by 25.09.2015 / 00:53
1
answer

How to read a json file using delphi

Good not being a pro in delphi I want to read a file json and extract fields. link     
asked by 28.09.2015 / 15:19
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Change properties of a component contained in a system module

I am modulating a system developed in Delphi XE3. One of my modules named Default has dmDados with a connection. In my main application, in onShow of my main Form I'm loading the module and trying to disconnect my connection...
asked by 04.05.2014 / 01:22
3
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How to list files and sub-directories in Delphi?

I created a project in Pascal-Object and at a given time it should list all the files and subdirectories located in the Desktop in tree, I found some examples in the WEB, but none was useful enough, because it only listd superficial directories...
asked by 08.02.2016 / 17:21
1
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Identify what is in the USB port

When a device is connected to a USB port, the operating system identifies the device. For example, in Windows, you can see which devices are connected to USB ports in Device Manager. I need to programmatically check if a specific device is co...
asked by 10.01.2016 / 16:54
1
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Problems with slow Delphi and FireDAC

I have an application developed in Delphi XE and it has been a month since I changed the entire persistence structure that used ADO to FireDAC. In the compatibility of the new persistence component I used the version of Windows 7, and in the...
asked by 17.12.2013 / 11:55
1
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What is the difference between an Interposer Class and a Helper Class in Delphi?

I've always worked more with interposer classes. I know it's better to create components, but sometimes it's faster to make a point adjustment using an interposer. New Delphi versions have the concept of helper classes and I think they look like...
asked by 24.10.2016 / 03:58
1
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Could not perform the edit because another user changed the record

Does anyone know if there is any trace of a table that is dropped from a bank? To facilitate if it is recreated, for example, and when I say trace is in the bowels of the same bank. I'm going through that famous problem of 'Could not perform...
asked by 14.09.2015 / 14:14