Questions tagged [delphi]
Delphi is a language for rapid development of native Windows, OS X and iOS applications through use of Object Oriented Pascal. The name also refers to the Delphi IDE, which is used to help edit and debug Delphi projects more efficiently.
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Configurable 'swapping' order of loops
The code below groups a list by either number or letter, as seen below:
1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B, 5A, 5B
or
1A, 2A, 3A, 4A, 5A, 1B, 2B, 3B, 4B, 5B
The option is configurable by the user via ...
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Delphi function to canonicalize the capitalization in a file path
I'm building a small Delphi application where a user can input a file or directory manually by typing it or by selecting it from a dialog . Since it can be input manually, I want to ensure that I save ...
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type in a Postcode and get the address
(I asked this Question in stackoverflow (Delphi) and they suggested that I try here.
Is there a site to submit my Delphi 7 coding to?
Hi I am learning how to build compound components. My latest ...
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Basic Color class for both Delphi and Lazarus
Intro
If you want to know, then about 10+ years ago, I started a journey on the (best in my country) color picker for WinXP, later Win7. Since now it is hardly compatible with Win10 and HiDPI (work in ...
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Dephi: faster way to convert a "dirty" string to a number
How can I make this code faster? the string can contain characters such as ", .?#" and possibly others.
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Generic function for loading a function from a DLL library
I am trying to write a generic function for loading a function from a DLL library. I am in no way an expert on DLLs, that is why I ask.
We have discussed it first in my Stack Overflow question to ...
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Noughts and crosses bot in Delphi
I hope someone can guide me in a way to make this code more efficient. Please explain the things you do simply because I'm no pro so more complex things I am unlikely to get.
If you have issues with ...
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Sending a string from anonymous thread to UI with PostMessage
I am sending a string from an anonymous thread to the UI with PostMessage in the following code:
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Resumable download with System.net.HTTPClient
This is a Delphi class, based on System.net.HTTPClient with a function for downloading a file from a URL and saving on a filename destination:
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Semi-Reliable Communications Using UDP
I'm writing a communications library for a class. Part of the requirements is that semi-reliable communications, which leads me to this monstrosity:
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Writing a file sequentially
I've written a procedure which allows serialized writing of a stream. I don't in any way consider this done, but this is the beginning of it. I know there are other implementations out there like this,...
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Flipping True or False values to save typing and time
I have a few columns in a DBGrid that I want to hide and show at different times depending on what the user wants to view.
Rather than writing the following code;
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Delphi 2009 interface
I have this code and at the end of it, FastMM shows that there were memory leaks with all the objects of TSinc:
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Delphi XE 7 project template for saving / loading form settings
I have developed small test project as a template for production project.
In this template I've found a way that the application saves and loads its own settings (ini-file).
Main Form1 will contain ...
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Delphi: convenience wrapper for GetSystemTimePreciseAsFileTime()
For some purposes it can be highly desirable to use GetSystemTimePreciseAsFileTime() whenever it is available (i.e. Windows 8+) because the accuracy of ...
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Binary and linear search methods for a number-guessing game
This is a code written is Pascal (Delphi). It asks the user to think of a number between min_ and max_ and then guesses the ...
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Validating Card Number in Delphi
As part of processing card payments, before even attempting to process, I need to check and validate the card number to make sure it's valid. For this, I've encapsulated this validation in a record ...
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Translating array pointer access from C++ to Delphi
I'd like to know if I translated a piece of code correctly from C++ to Delphi. It looks like it is working, but I have a feeling that I'm reading and writing into memory that I'm not supposed to using ...
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Class derived from TXmlIniFile to save/read to/from XML
I have created this unit containing a class derived from TXmlIniFile. This class uses the common TCustomInifile methods to write to and read from an XML file. It comes from an idea of Chris Rolliston ...
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Function to find text between two tags
I've just finished this function and wanted to know if anyone know another way to do the same:
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Single level of abstraction
I am reading the "Clean Code" book and trying refactoring my source code according to the principles "single level of abstraction"/"separation of concerns".
How would you refactor the following code? ...
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Efficient binary patcher
I am currently working on a little binary patcher. My current code works fine but I do want my code to be optimized (fast) and as clean as possible. Could you all please help me review this?
IDE: ...
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What's the best approach to achieve two-way communication with TIdTCPServer and TIdTCPClient?
I'm a newbie in Delphi and I'm trying to create a client/server application using INDY. I want to have a server that is capable not only of receiving messages and streaming, but also sending data to ...
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Stack-based mini-stack
I've created a MiniStack to assist in removing recursion from routines using a manual stack.
Obviously if the stack is an object it lives on the heap and its ...
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Executing large SQL script file with GO statements using ADO
I wrote a small component (still in the works but working) which takes a large SQL script file, splits it into different "blocks" based on GO statements, and executes them one by one.
The only major ...
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