| [Overview][Resource strings][Constants][Types][Classes][Procedures and functions] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
TContainerWidget is an abstract class that defines the interface for containing other widgets
Source position: container.inc line 23
type TContainerWidget = class(TWidget) |
||
protected |
||
function DistributeEvent(); override; |
|
Distributes Event objects to all children widgets |
function GetChildCount; virtual; abstract; |
|
|
function GetChild(); virtual; abstract; |
|
|
property ChildCount: Integer; [r] |
|
|
|
||
procedure InsertChild(); virtual; dynamic; |
|
|
procedure RemoveChild(); virtual; dynamic; |
|
|
public |
||
function GetChildAt(); |
|
|
function ContainsChild(); dynamic; abstract; |
|
|
end; |
|
TContainerWidget is an abstract class that defines the interface for containing other widgets |
|
| | | ||
|
The TWidget class is the base class of all user interface objects. |
|
| | | ||
TComponent |
||
| ? | ||
TObject |
TContainerWidget is an abstract class that defines the interface for containing other widgets . It also implements the distribution of events to child widgets. You can't create an instance of this class, as it contains abstract methods, and doesn't actually define internally how to store references to child widgets. It purely defines the interface in doing so. This class is a decendant of TWidget and must be used as a base for container widgets. TLayout is an example of a container class that can hold multiple children. TBinWidget is an example of a container class that can hold only a single child widget - normally a TLayout descendant.
|
The TWidget class is the base class of all user interface objects. |
|
|
This is a concrete class that implements all the TContainerWidget's abstract methods |
|
|
The fpGUI layout system provides a simple and powerful way of specifying the layout of child widgets |