Questions tagged as 'delphi'

Tagged questions
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How to save Tcombobox status in a form and when opening it again that is the Tcombobox as before?

I have a form with a series of Tcombobox and edits that I would like to accept and save this data and when I open that form it opens the same way I close it, with all the selected Tcombobox etc ... Work in delphi with pier rad studio xe6....
asked by 02.11.2016 / 09:42
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TDBXTypes.DOUBLE error with Delphi

I have this error I can not solve it, search in many forums but I can find a solution. I am developing in delphi a client-server program with datasnap. This error appears when I execute an INSERT procedure on sqlserver: Client side scri...
asked by 17.05.2018 / 04:35
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Tdatetimepicker delphi 7

I need to grab the date value to validate with an ibquery, the next code I try to use to get the value, but without success dm_dados.sqlConVenta.ParamByName('datavend').value :=DateTimePicker1.DateTime ;     
asked by 16.08.2017 / 22:19
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Algorithm of rotation in delphi [closed]

I need your help I'm looking everywhere for the rotation algorithm in Delphi as I found it in OpenGL graphics but it is wrong but for more than I look for it I can not find someone who can help me with the algorithm please.     
asked by 01.11.2016 / 04:26
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Can I use BlueStacks 4 as an emulator for android in Delphi Tokyo?

I have tried to use BlueStacks 4 as an android emulator in Delphi Tokyo and the created applications are installed, but they do not run. I changed some suggested settings on the Web and nothing. I hope you can help me. Thank you.   ...
asked by 19.11.2018 / 22:55
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delete record that are within a range of dates

I am trying to delete records that are within a range of dates I have a small error in my code: begin query.close; query.sql.clear query.sql.text := (' delete from tabla where (campo_fecha between :fecha1 and :fecha2); query.Parameter...
asked by 12.10.2018 / 15:50
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filter delphi records

I am working on a project in delphi xe6 and ADO and MS ACCESS components as a base of tados. When I write a letter in edit1 for example the letter 'a' I see this error "incorrect arguments, outside the allowed range or in conflict with others...
asked by 17.08.2018 / 22:36
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How to find the closest component to a given point in the OnTap (Android) Delphi event?

It's kind of hard to explain, but what I need is that when you click on an item in a TreeView, you can identify the closest checkbox component in a certain radius from the point you touch. I do not know if I explain myself but I will try to expl...
asked by 13.08.2018 / 18:43
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filter dates with two DateTimePicker

Hi, I'm trying to filter dates with two DateTimePicker by clicking on a button and the result appears in the grid using the MYDAC component and as a database MYSQL workbench This is my code: query.clear; query.SQL.ADD('select * from compañia1...
asked by 21.06.2018 / 04:57
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INSERT in SQLSERVER with DELPHI XE4

I am new to Delphi XE4 and can not find where my error is in the query: INSERT into CUENTAS (codigocu,nombre,apellido,idcondiva,email) values ( :icodigocu, :inombre, :iapellido, :iidcondiva, :iemail); The error that shows me is this: dbex...
asked by 05.05.2018 / 20:58