The Delphi Run-Time Library (or RTL) is composed of a number of base units that provide the underlying support for most of the VCL component libraries. The RTL includes global routines, utility classes such as those that represent streams and lists, and classes such as TObject, TPersistent, and TComponent.
This section lists all routines and classes included in the RTL, split by categories.
DelphiVCL.WinControl or TWinControl is the base class for all controls that are wrappers for Microsoft Windows screen objects.
TWinControl provides the common functionality for all controls that act as wrappers for Microsoft Windows screen objects…
DelphiVCL.StringGrid or TStringGrid represents a grid control designed to simplify the handling of strings and associated objects.
Add a TStringGrid object to a form to present textual data in a tabular format. TStringGrid provides many properties to control the…
In DelphiVCL Library or Python in general, the following methods can be defined to emulate numeric objects. Methods corresponding to operations that are not supported by the particular kind of number implemented (e.g., bitwise operations for non-integral numbers) should be left undefined.
object.__add__(self, other)
object.__sub__(self, other)
object.__mul__(self…
Are you looking for powerful tools to analyze and manipulate structured data, and build a nice GUI for them? You can build fast, expressive, insightful, and scalable data analysis tools easily by combining pandas and Python4Delphi library, inside Delphi and…
DelphiVCL.DrawGrid represents a grid control that displays information in column and row format.
Add a DelphiVCL.DrawGrid object to a form to present arbitrary information in a tabular format. DrawGrid provides many properties to control the appearance of the grid, as…
Learn To Build A Python GUI For Web Scraping Using BeautifulSoup Library In A Delphi Windows App
May 15, 2021
Are you looking for tools to build website scrapers to automate your data collecting process, and build a nice GUI for them? You can build scalable web scrapers easily by combining BeautifulSoup and Python4Delphi library, inside Delphi and C++Builder.
BeautifulSoup is a library that makes it easy to scrape information from web pages. It sits atop an HTML or XML parser, providing Pythonic…
Learn To Build A Python GUI For Scientific Computing With The Scipy Library In A Delphi Windows App
May 14, 2021
If you need a Python-based ecosystem of open-source software for mathematics, science, and engineering, then Python’s SciPy (pronounced “Sigh Pie”) library is exactly what you need. You can easily run this library and give it a nice GUI using Python4Delphi (P4D).
Build An Artificial Intelligence Solution With TensorFlow Library In A Delphi Windows App
May 13, 2021
Are you looking for an end-to-end open-source machine learning and deep learning platform, and build a nice GUI for them? You can deliver enterprise-grade AI solutions easily by combining TensorFlow and Python4Delphi library, inside Delphi and C++Builder.
TensorFlow is an…
In previous examples, we already use .Items several times (see Getting Started with DelphiVCL III: Overview of Commonly used VCL Components). We use it in ListBox, ComboBox, and RadioGroup. Items contain the strings that appear in the ListBox, ComboBox, and RadioGroup.
Use Items to add, insert, delete and move items. By default, the items in a list box are of type Strings. Use this item type to…
