When performing development on Windows, the ComponentState property or DelphiVCL.Application.ComponentState is used to describe the current state of the component, indicating when a component needs to avoid certain actions.
ComponentState is a set of constants defined in the TComponentState type.
Components use the ComponentState property to detect states in which certain kinds of actions…
When carrying out Windows development, use the CurrentHelpFile property or DelphiVCL.Application.CurrentHelpFile to indicate the current Help file.
You can read CurrentHelpFile to determine the name of the Help file that is currently used by the application when it…
The Action parameter in DelphiVCL is used to specify the action associated with the control when carrying out Windows development.
Action is the action object that is associated with the control. Actions allow an application to centralize the response to user commands.
The ClassNameIs method or DelphiVCL.Application.ClassNameIs is used to determine whether an object is of a specific type when you develop windows software.
ClassNameIs determines whether an object instance or class reference has a class name that matches a specified string. This is useful to query objects across modules or shared libraries.
Let’s browse all the properties, methods, and…
Here’s another great talk from the recently concluded PyCon. In this video, Igor T. Ghisi will discuss data regression testing and how exactly this procedure can help you in your Python project. As the data structures of a project increase in size and complexity, it…
In the past few decades, computers have relied on interaction with the user via a graphical user interface, i.e., a GUI. It consists of a main window, a menu, a toolbar, buttons, labels, etc. There are various Python tools for building GUIs, and here I will go through seven…
Ever wonder how Google Voice managed to recognize your speech and understand its context? How about those advertisements that you often see on search engines and social media platforms that are surprisingly relevant to your previous searches and inquiries? Well, these are just some of the successful implementations of the so-called Natural Language Processing or NLP. Adding NLP to your programs is…
What Is delphivcl.Picture Used For In Windows Development?
February 18, 2022
DelphiVCL.Picture or TPicture contains a bitmap, icon, metafile graphic, or user-defined graphic. It is used in Windows development to display images to the user as part of the graphical user interface.
DelphiVCL.Picture or TPicture is a TGraphic container, used to hold a…
DelphiVCL.PaintBox or TPaintBox provides a canvas that applications can use for rendering an image when you develop Windows software.
We can use TPaintBox to add custom images to a form. Unlike TImage, which displays an image that is stored in a bitmap, icon, or metafile…
This Is How TShiftState Works For Windows App Development
February 16, 2022
TShiftState in DelphiVCL indicates the state of the modifier keys – shift/ctrl/alt, the mouse buttons, or touch devices when you are performing Windows app development.
The TShiftState type is used by key-event and mouse-event handlers to determine the state of the modifier keys, the state of the mouse buttons, or the state of an attached touch device when the event occurs. It is a set of…
