ListBox displays a collection of items in a scrollable list. We use ListBox to display a scrollable list of items that users can select, add, or delete. ListBox is a wrapper for the Windows listbox control.
We can browse all the properties, methods, and built-in properties of the DelphiVCL.ListBox using dir() command:
import DelphiVCL
dir(DelphiVCL.ListBox)
See the…
Rect indicates the portion of the list view’s client area covered by the work area.
Set Rect to specify the sphere of influence of a work area. Rect is the bounding rectangle of a portion of the list view’s client area. If Rect specifies a region larger…
CheckBox represents a check box that can be on (checked) or off (unchecked).
A CheckBox component presents an option for the user. The user can check the box to select the option, or uncheck it to deselect the option.
The Caption property can be used to define…
Learn Python With The Hitchhiker's Guide to CLIs in Python by Vinayak Mehta (PyCon 2020) Video
May 3, 2021
Here comes another interesting talk from the recently concluded PyCon 2020. In this video presented by Vinayak Mehta, we will learn more about Command-line applications and their interesting history as well as how can we create them using various Python packages. We all know that these Command-line applications and interfaces are used by both newcomers and experienced Python developers on a daily…
DelphiVCL.Edit or TEdit is a wrapper for a Windows single-line edit control.
We can use an Edit object to put a standard Windows edit control on a form. Edit controls are used to retrieve text that users type. Edit controls can also display text to the…
DelphiVCL.Label or TLabel is a non-windowed control that displays text on a form.
Use Label to add text that the user cannot edit on a form. This text can be used to label another control and can set focus to that control when the user types an accelerator key. The…
DelphiVCL.TabSheet is an individual page in a PageControl object.
We use TabSheet to represent a single page in tabbed page control. Tab sheets are typically referred to as pages. PageControl maintains an indexed array of its tab sheets in its Pages property. Users can click on a tab to activate the tab sheet.
You can use the Caption property of the TabSheet control to define an…
DelphiVCL.PageControl is a set of pages used to make a multiple page dialog box.
We can use PageControl to create a multiple page dialog or tabbed notebook. PageControl displays multiple overlapping pages that are TabSheet objects (we will discuss TabSheet in another…
DelphiVCL.Panel or TPanel implements a generic panel control.
We can use TPanel to put an empty panel on a form. Panels have properties for providing a beveled border around the control, as well as methods to help manage the placement of child controls embedded in the…
DelphiVCL.CreateComponent is a function to create a specified component.
We call CreateComponent to create an instance of ComponentClass at the position specified by the Left and Top parameters with the size specified by the Width and Height parameters. The new component will be a child of the component specified by the Parent parameter.
We can browse all the properties, methods, and…
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