Questions tagged as 'delphi'

Tagged questions
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How to do Json readings with multiple lists (DELPHI)?

I'm using the XSUPEROBJET examples to read Json below, but the examples use simple Json structures, and they work, but when I try to read the structures with multiple lists they do not work. I do not know what I'm doing wrong. My problem i...
asked by 12.09.2017 / 20:47
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Thread Pool Example in delphi

How do I make a pool of Thread , I need to execute a process that contains several records, but I need to send on demand, send 10 and as I release it, send more ... how can I do it? / p> I've set an example ... unit Unit1; inte...
asked by 13.06.2017 / 14:16
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Delphi + Firemonkey: dynamic parent in component created at runtime

I have a TForm that allows the system user to create components at runtime ( TButton , TRadioButton , TLabel , TPanel , among others). This functionality is working, but now there is a need for the user to creat...
asked by 09.06.2017 / 02:18
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How to countdown in a MessageBox

Usage Delphi XE7 , needed to countdown to MessageBox , Não button. For example a count of 10 sec next to the caption of the Não (10) button and so it decreases Não (9) . My alternative is to create the dialogue...
asked by 15.03.2017 / 19:56
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SQL Abstraction with FireDAC

I would like to know how best to work with SQL abstraction in a multi-banking system. For example: Firebird : SELECT SUBSTRING(nome FROM 5 FOR 8) FROM clientes Oracle : SELECT SUBSTR(nome,5,8) FROM clientes How to make the ap...
asked by 23.02.2017 / 18:01
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Export Date Type to openOffice / libreOffice Delphi

How can I export a Date type to openoffice / libreoffice when I need to export a String type I do it as follows. SheetOpenOffice.GetCellByPosition(vCont,vlinha).SetString(Q_Assoc.Fields[i].AsString); How can I do when the type that comes i...
asked by 18.04.2017 / 20:04
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Thread - How to call a form inside a Thread iTask?

In Delphi 10.2, I have a Form A that has a "Task-A" TTask that triggers a StoredProcedure in the Oracle database with Firedac. The StoredProcedure updates a result table that will be used by a form B which has a graph. I would like to call Form...
asked by 08.10.2017 / 05:54
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TByteDynArray for String Delphi 7

I have a method to convert a base64 file that returns a TByteDynArray, and I wanted to convert this TByteDynArray to String. I've tried it in some ways and it's not working. Error:     
asked by 11.04.2017 / 00:18
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Load Dynamic DLL (BemaFI32) in Delphi

I need help on how to load the BemaFI32.dll DLL dynamically in Delphi. My code looks like this: function _Bematech_FI_NumeroSerie(NumeroSerie: AnsiString): Integer; var xBematech_FI_NumeroSerie : function ( NumeroSerie: AnsiString...
asked by 08.08.2016 / 19:31
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Error '15 .0 'is not a valid floating point value when saving .xls

When trying to save an .xls file I'm having the following error:    '15 .0 'is not a valid floating point value I'm trying to save it like this: var HCalc : THojaCalc; vArquivo : String; vArquivo := 'C:/MinhaPasta/Arquivo.xls'; //dentr...
asked by 29.07.2016 / 14:00