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 - did I understand callbacks correctly?
I am trying to learn callbacks in Delphi (7). Could not find a complete simple tutorial, so I puzzled together a few bits here and there. This is my first attempt, of course trivial.
My form contains ...
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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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Delphi TIdTCPClient connection pool in a multithread environment
I want to use TIdTCPClient to connect to Redis from a web server application made with Delphi and TWebModule. Currently on ...
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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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Efficiently calculate the value of an arithmetic sequence
I need to calculate the value for the following function:
$$f(n) = -1 + 2 - 3 + ... + -1^n$$
The time limit to calculate a given value of \$n\$ is less than 1 second. My approach does not meet that ...
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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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Animation loop for a sliding puzzle game
I'm building a "sliding puzzle" game. This is the animation code for when you click a Tile.
This "loop" function is running all the time.
When you click a tile, if it's available to move, I set the "...
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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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IsValidEmailAddress
I have created this function for Delphi 10.1 Berlin to validate an email address entered by the user:
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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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Code efficiency check for hangman in Delphi
I recently coded a game of hangman and wanted to know,
A: Are there any places it could be more efficient?
B: Are there any things that are distinctly wrong with it, since I know people seem to say ...
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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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Enumerating RCData resources from the EXE file which has been launched
I am running Delphi XE6.
I recently integrated all of my read-only language INI files into the executables.
As a consequence, I need to enumerate RCData resources (and then simply filter out the ...
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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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