AfterConstruction method or DelphiVCL.Application.AfterConstruction is used to respond after the last constructor has been executed. Do not call it explicitly in your applications.
The AfterConstruction method implemented in TObject does nothing. Override this method when creating a class that performs an action after the object is created. For example, TCustomForm overrides…
Learn to Automatically Generating A CLIs Using Python’s Fire Library In A Delphi Windows App
May 26, 2021
Are you looking for powerful tools to automatically generate command-line interfaces to make your life easier, and build a nice GUI for them? You can build it easily by combining Fire and Python4Delphi library, inside Delphi and C++Builder.
Python Fire is a library…
Learn To Build A Python GUI For Working With Multidimensional Arrays Using Theano Library In A Delphi Windows App
May 25, 2021
If you need a Python-based ecosystem of open-source software for mathematical expressions involving multi-dimensional arrays, then Python’s Theano library is exactly what you need. You can easily run this library and give it a nice GUI using Python4Delphi (P4D).
Color is used to specify the color of a Windows-only control. It is used by the Color property of many components and by several other properties that specify color values.
The DelphiVCL.Graphic unit contains definitions of useful constants for Color. These constants map either directly to the closest matching color in the system palette (for example, clBlue maps to blue) or to the…
AddPopupForm method or DelphiVCL.Application.AddPopupForm is used to add a PopupForm to the current form.
AddPopupForm adds a TCustomForm, that acts as a popup, in the current form. Popup handling is done by using a TPopupFormArray.
The method returns the popup…
ActiveFormHandle property or DelphiVCL.Application.ActiveFormHandle is used to give the Windows handle of the currently active form.
ActiveFormHandle gives the Windows handle of the currently active form.
Let’s browse all the properties, methods, and built-in…
Shape in DelphiVCL.Shape is used to specify the shape of the control.
Set Shape to the geometric shape that should be drawn on the form.
The Shape property has these possible values:
Value
Meaning
stCircle
The shape is a circle.
stEllipse
The shape is an ellipse.
stRectangle
The shape is a rectangle. (Default)
stRoundRect
The shape is a…
In the previous examples, we already use the .SetProps several times (see Section 7: Getting Started with DelphiVCL III: Overview of Commonly used VCL Components).
Use SetProps to set specific properties to components.
Here are the working examples taken from…
Active property or DelphiVCL.Application.Active is used to specify whether the application is active and has focus.
Active is true while the application is active and false if it is not. Active is set to true in the constructor.
An application is active if the…
ActivateHint method or DelphiVCL.Application.ActivateHint is used to display a hint window for the control at a specified position.
ActivateHint locates the control or menu item at the position specified by CursorPos, where CursorPos represents a screen coordinate in pixels. After locating the control, ActivateHint displays the control’s Hint in a hint window.
Let’s browse…
