Description
This post will break down the code example to create a simple Form app as presented in the previous post. These steps are essential for Python Developers to be familiar with Delphi VCL methods, events, and properties, to enable you in creating professional Windows Apps, without installing Delphi.
Code example and explanation
Below are the explanations of code example in the…
In essence, DelphiVCL is a wrapper that helps to create and access Delphi Objects quickly from Python. These wrappers contain container classes to extend and expose your custom events, methods, variables that can be used in Python script.
Code example
Here is a Python…
OnDblClick event occurs when the user double-clicks the left mouse button when the mouse pointer is over the control.
We use the OnDblClick event to respond to mouse double-clicks.
OnDblClick is an event handler of type…
Quickly Browse All Available Functions in DelphiVCL4Python Library For Python Windows Apps
March 7, 2021
To make sure that you have already installed the DelphiVCL Python library correctly, you can simply test it using the Python dir() command:
import delphivcl
dir(delphivcl)
If you install it correctly, it will return all properties, methods, even built-in properties of the DelphiVCL module, without the values:
See them more clearly here:
['Abort',
'Action',
'ActionList'…
There are two ways for you to install DelphiVCL: By directly copying the module to your local/system path, or install it via pip.
1. Copy to Your Local or System Path
Download the DelphiVCL.pyd module Beta Release 0.01– Beta preview – 2021-18-01, and extract…
The most important benefits of the VCL over other competing technologies such as Tkinter and PyQT are as follows:
A standard set of components that includes all controls provided by the Windows UI framework. This set consists of components such as buttons, edits, menus…
.Width specifies the horizontal size of the control or form in pixels.
Use the Width property to read or change the width of the control.
Note: For tab sheet controls, changing this property at the run time does not affect.
Here are the examples of drawing a rectangle with Width =100, 200, 300, or 460 respectively:
# Draw a rectangle
shpRectangle =…
Learn To Build A Python GUI For Scientific Computing With The NumPy Library In A Delphi Windows App
February 28, 2021
If you need to perform complex transformations or mathematical calculations with matrices or arrays, then Python’s Numpy library is exactly what you need. You can easily run this library and give it a nice GUI using Python4Delphi (P4D). Python4Delphi is a free tool that…
Learn To Work With Real-World Graphics Using The Python Matplotlib Library In A Delphi Windows App
February 27, 2021
With the growing demand for Data Science and Analytics skill sets, drawing graphics programmatically is a very popular task these days. You can easily solve it by combining the Matplotlib library with Python4Delphi (P4D). P4D is a free set of powerful tools that allows you…
Learn To Build A Python GUI For Easily Processing Images With Pillow Library In A Delphi Windows App
February 26, 2021
Are you looking for a simple way to process images programmatically, and build a nice GUI for them? You can do it easily by combining Python4Delphi and Pillow library, inside Delphi and C++Builder. Python4Delphi (P4D) is a free tool that allows you to execute Python scripts, create new Python modules and types in Delphi.
Pillow or PIL is the Python Imaging Library that adds image processing…
