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…
Python is considered one of the most widely used programming languages globally. It is famous for its readable syntax, dynamic nature, and robust object-oriented nature.Additionally, Python’s applications form a diverse variety, from being the first programming…
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, TPaintBox requires an application to draw the image directly on a canvas. Use the OnPaint event handler to draw on the paint…
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…
DelphiVCL is a powerful framework for creating excellent, modern, graphical user interfaces (GUIs) for your Python programs. DelphiVCL is independent of Delphi and does not require Delphi to be installed. However, you can make use of Delphi’s powerful IDE software and its…
We use the Value property to set or specify any actions or parameters in the DelphiVCL library while using the IDE software.
Here is the working example of Value with CanSelect parameter:
def grdTestSelectCell(Sender, Col, Row, CanSelect):
if Col == 2 and Row == 2:
CanSelect.Value = False
In the example above, we set the CanSelect parameter to False to prevent the cell in…
The Lines Property contains the individual lines of text in the memo control. This works for native Windows development.
We use Lines to manipulate text in a memo control on a line-by-line basis. Lines is a DelphiVCL.Strings or TStrings object, so the TStrings methods may…
What Are Bi-Directional Properties In DelphiVCL Applications?
January 28, 2022
What is Bi-Directional (BiDi)?
Some languages do not follow the left to right reading order commonly found in Western languages, but rather use the right to left reading order for words and the left to right reading order for numbers. These languages are termed…
Everything You Need To Know About C++ ABI Inside DelphiVCL
January 27, 2022
C++ ABIs or more specifically: DelphiVCL.Application.CPP_ABI_1, DelphiVCL.Application.CPP_ABI_2, and DelphiVCL.Application.CPP_ABI_3 inside DelphiVCL.Application is C++ ABIs (Application Binary Interfaces, which are implemented under the hood, including how parameters are passed, such as in a register or on the stack).
In windows development software but also especially for Linux, an…
