The OnException or DelphiVCL.Application.OnException event occurs when an unhandled exception occurs in the application. This is a fundamental error event to understand when you develop Windows software.
How is the DelphiVCL.Application.OnException event used?
Use OnException to change the default behavior that occurs when an exception (a critical error) is not handled by regular…
What is an OnGetActiveFormHandle Event in DelphiVCL.Application?
December 26, 2021
OnGetActiveFormHandle or DelphiVCL.Application.OnGetActiveFormHandle is the event triggered when reading the value of the ActiveFormHandle property.
Let’s take a look at all of DelphiVCL.Application.OnGetActiveFormHandle properties, methods, and built-in…
DelphiVCL.BitBtn is a push button control that can include a bitmap on its face. It’s an alternative to the regular button control which can’t directly use graphics on it.
Bitmap buttons exhibit the same behavior as button controls. We use them to initiate…
The Alignment or TAlignment property is used to specify how text is aligned within a control. The default value of the Alignment property is taLeftJustify.
These are the possible values of Alignment:
Value
Meaning
taLeftJustify
Align text on the left side of the header section.
taCenter
Center text in the header section.
taRightJustify
Align text on the…
The Sender property specifies which component notifies the change link object of changes.
We use Sender to access the component that has changed.
Here is a working example of the implementation of Sender property in DelphiVCL:
# Implementation in Color…
Are you looking for a truly open-source deep learning framework suited for flexible research prototyping and production, and building a nice GUI for them? You can deliver ultra-scalable deep learning solutions easily by…
7 More Built-In Function Objects Inside DelphiVCL4Python Library
December 17, 2021
When running dir() to DelphiVCL library or any DelphiVCL methods and properties in all previous sections, you might find many of Python’s built-in objects and properties. You can also read 7 Built-In Function Objects Inside The DelphiVCL Library which has some other built-in object functions which relate to the ones in this article.
In this post, you’ll learn more about built-in…
7 Built-In Function Objects Inside The DelphiVCL4Python Library
December 16, 2021
When running dir() to DelphiVCL library or any DelphiVCL methods and properties in all previous sections, you might find many of Python’s built-in objects and properties. You might also want to read 7 More Built-In Function Objects Inside The DelphiVCL Library which has…
In this post, you’ll learn about DelphiVCL.Screen or TScreen represents the state of the screen on which an application runs. Learning more about DelphiVCL.Screen or TScreen Object will allow you to easily build screen applications with Python Coding…
What Is The OnActionUpdate Event In DelphiVCL.Application?
December 10, 2021
In this post, we’ll use OnActionUpdate or DelphiVCL.Application.OnActionUpdate event occurs when an action’s Update method is called and its action list has not already handled it. Learning how to do it will allow you to easily build GUIs and test it with Python Testing Tools.
Use the OnActionUpdate event handler to update the properties of an action when the application is idle if…
