How Delphi!

Delphi’s holy source of knowledge!

  • How can I use randomize, random and randomrange in Delphi

    In Delphi, you can use the Randomize function to initialize the random number generator, the Random function to generate a random floating-point value between 0 and 1, and the RandomRange function to generate a random integer within a given range. Here’s an example of how to use these functions uses System.SysUtils; var R: Real; I:…

  • How can I use System.LoadResource in Delphi

    System.LoadResource is a function in the Delphi RTL (Run-Time Library) that allows you to load a resource from an executable file or a module. Resources are data that are stored in a binary format and can be accessed by an application at runtime. Examples of resources include strings, images, and sounds. To use System.LoadResource, you…

  • How can I use math functions in Delphi

    Delphi includes a number of math functions in its standard library, which you can use by including the Math unit in your program and calling the functions as needed. For example uses Math; var x, y: Double; begin x := Cos(0.5); y := Exp(2.7); end; Here are some of the math functions that are available…

  • Creating random passwords with given lenght in Delphi

    To create a function for generating random passwords in Delphi, you can use the following steps: Start by creating a function that takes an integer parameter for the password length. This will allow you to specify the length of the password when you call the function. Initialize a string variable to store the password as…

  • Calculating distance of two strings in delphi

    To create a function for calculating the distance between two strings in Delphi, you can use the Levenshtein distance algorithm. This is a measure of the difference between two strings, where the distance is the minimum number of single-character edits (insertions, deletions, or substitutions) required to transform one string into the other. Here is an…

  • How can I create a password protected zip file in Delphi

    To create a password-protected ZIP file in Delphi, you can use the TZipFile class from the System.Zip unit. Here is an example of how you can use TZipFile to create a password-protected ZIP file First, include the System.Zip unit in your code by adding the following line at the top of your program: uses System.Zip;…

  • How do I make http post in Delphi FMX

    To make an HTTP POST request in Delphi FMX (FireMonkey), you can use the THTTPClient class from the System.Net.HttpClient unit. Here is an example of how you can use THTTPClient to make an HTTP POST request: First, include the System.Net.HttpClient unit in your code by adding the following line at the top of your program:…

  • How can I use TScannerSensor in Delphi

    TScannerSensor is a class in the System.Sensors unit of the Delphi Standard Library that provides a component for accessing a scanner sensor on a device in a Delphi program. The TScannerSensor class is part of the System.Sensors.Components unit, which provides a set of components for accessing various types of sensors on a device, such as…

  • How can I use TCustomLightSensor in Delphi

    TCustomLightSensor is a class in the System.Sensors unit of the Delphi Standard Library that provides a base class for implementing a custom light sensor in a Delphi program. The TCustomLightSensor class is part of the System.Sensors.Components unit, which provides a set of components for accessing various types of sensors on a device, such as the…

  • How can I use TSearchOption in Delphi

    TSearchOption is an enumeration type in the IOUtils unit that specifies the type of search to be performed when enumerating the files or directories in a directory. It has two possible values soTopDirectoryOnly This value specifies that only the files and directories in the top-level directory should be included in the search. soAllDirectories This value…