, VCL. TObject, . , . , . - , .
VCL , Delphi. , TObject, TComponent ( ) TControl ( ).
, Delphi, . VCL , .
, "" ; , ; .
TObject. "" . , .
, . VCL . . :
var SomeList: TStrings;
...
SomeList:= TStrings.Create;
...
SomeList.Free;
. TObject , .
, TObject .
TPersistent TObject. . , .
TComponent . . , TComponent, , . , .
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TControl TComponent. . , TControl, . , GUI (Graphic User Interface ) .
TWinControl . TControl .
TWinControl TCustomControl. , ( . . ).
TCustomControl , ( ) Windows: , . .
( ) TGraphicControl, TControl.
Delphi, .