DelphiVCL.Canvas provides an abstract drawing space for objects that must render their own images.
Use DelphiVCL.Canvas as a drawing surface for objects that draw an image of themselves. Standard window controls such as edit controls or list boxes do not require a canvas, as they are drawn by the system.
DelphiVCL.Canvas provides properties, events, and methods that assist in…
DelphiVCL.CustomDrawGrid is the base class for grids that publish events for painting and manipulating the cells in the grid.
Use DelphiVCL.CustomDrawGrid or TCustomDrawGrid as a base class when defining grid components that publish events for painting or manipulating…
main() function is like the entry point of a program. However, the Python interpreter runs the code right from the first line. The execution of the code starts from the starting line and goes line by line. It does not matter where the main function is present or it is…
DelphiVCL.CustomControl is a base class for controls that wrap Windows screen objects but perform their own rendering.
In most descendants of TWinControl, the job of drawing the control’s surface belongs to the underlying Windows screen object. If a control has visible features that cannot be rendered by a Windows screen object, it requires access to a canvas object so it can do its…
DelphiVCL.CustomActionList is the base class for action list objects that manage a set of actions.
Manages the Layout of Toolbar Components using
Action lists manage a collection of action objects so that they are available to the components in an application.
delphivcl.Application is the type used for a GUI windowed application. Application encapsulates a windowed application. The methods and properties introduced in the Application reflect the fundamentals established in the Windows operating system to create, run, sustain, and…
delphivcl.Form represents a standard application window (form). Forms can represent the application’s main window, or dialog boxes, or MDI children. A form can contain other objects, such as Button, CheckBox, and ComboBox objects.
You can see all the properties, methods, and built-in properties of the delphivcl.Form using dir() command:
import delphivcl
dir(delphivcl.Form)
See the…
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DelphiVCLis a Python module giving Python GUI apps on Windows access to Delphi’s VCL…
DelphiVCL.Collection or Collection is a container for CollectionItem objects.
Each Collection holds a group of CollectionItem descendants. The Collection maintains an index of the collection items in its Items array. The Count property contains the number of items in…
DelphiVCL.BoundLabel is the type of a labeled Edit control’s label.
BoundLabel implements the label of a labeled Edit control. Unlike other label controls such as Label, BoundLabel “belongs” to the labeled Edit control (it is a subcomponent of the Edit control). This means that the bound label’s Owner is the Edit control rather than the form, and the Edit control is…
