ndicates whether the check box is selected.

property Checked: Boolean;

Description

When Checked is True, a check mark appears in the check box (State = cbChecked), indicating that the option is selected. When Checked is False, the check box is either unchecked (State = cbUnchecked) or grayed (State = cbGrayed).
created on the Page Control that exceed the Page Control's width. When the Check Box control is clicked, the setting of the MultiLine property is toggled, alternately stacking the tabs vertically, or along a single line horizontally.


procedure TForm1.CheckBox1Click(Sender: TObject);
begin
PageControl1.MultiLine := CheckBox1.Checked;
end;

procedure TForm1.FormCreate(Sender: TObject);
var
i: integer;
begin
Checkbox1.Caption := 'Stack Tabs?';
for i := 0 to 20 do
with TTabSheet.Create(Self) do
begin
PageControl := PageControl1;
Caption := 'Tab #' + IntToStr(i);
end;

end;