DelphiVCL.WinControl or TWinControl is the base class for all controls that are wrappers for Microsoft Windows screen objects.
TWinControl provides the common functionality for all controls that act as wrappers for Microsoft Windows screen objects (“windows”). Controls that are wrap underlying windows have the following features:
The control can incorporate the…
DelphiVCL.StringGrid or TStringGrid represents a grid control designed to simplify the handling of strings and associated objects.
Add a TStringGrid object to a form to present textual data in a tabular format. TStringGrid provides many properties to control the…
In DelphiVCL Library or Python in general, the following methods can be defined to emulate numeric objects. Methods corresponding to operations that are not supported by the particular kind of number implemented (e.g., bitwise operations for non-integral numbers) should be…
DelphiVCL.DrawGrid represents a grid control that displays information in column and row format.
Add a DelphiVCL.DrawGrid object to a form to present arbitrary information in a tabular format. DrawGrid provides many properties to control the appearance of the grid, as well as events and methods that take advantage of the tabular organization of the grid in responding to user…
In previous examples, we already use .Items several times (see Getting Started with DelphiVCL III: Overview of Commonly used VCL Components). We use it in ListBox, ComboBox, and RadioGroup. Items contain the strings that appear in the ListBox, ComboBox, and…
Description
delphivcl.Memo is a wrapper for a Windows multiline edit control.
We use Memo to put a standard Windows multiline edit control on a form. Multiline edit boxes allow the user to enter more than one line of text. They are appropriate for representing lengthy…
DelphiVCL.StaticText or TStaticText is a windowed control that displays text on a form.
The DelphiVCL.StaticText or TStaticText component functions like TLabel, except that it descends from TWinControl and therefore has a window handle. Use TStaticText instead of TLabel when the component’s accelerator key must belong to a windowed control—for example, on an ActiveX property…
DelphiVCL.Splitter or TSplitter divides the client area of a form into resizable panes.
Add a splitter to a form between two aligned controls to allow users to resize the controls at runtime. The splitter sits between a control aligned to one edge of the form and the…
DelphiVCL.SpinEdit or TSpinEdit combines a TEdit box with a TSpinButton.
DelphiVCL.SpinEdit component is a TEdit with a TSpinButton attached. The Value of the edit box is numerical. By pressing the up and down buttons of TSpinButton, the Value is increased or…
DelphiVCL.SpinButton or TSpinButton allows the user to navigate through a range of values using the arrow buttons.
DelphiVCL.SpinButton is a control with two TTimerSpeedButtons, each button displaying an arrow. TSpinButton allows the navigation through a range of values using the arrow buttons to customize the value held by the control. Usually, it is used to increase or decrease the value…
