/*
This example requires a new TPageControl, with no new pages
created at design time.  The form OnCreate event handler
adds several new TabSheet controls to the Page Control.  The
Page Control’s OnChange event handler displays a message
dialog when the user changes tabs.  The message dialog
contains the captions for the tabs immediately before and
after the active tab.
*/
void __fastcall TForm1::FormCreate(TObject *Sender)
{
  for (int i = 0; i < 10; i++)
  {
    TTabSheet *pPage = new TTabSheet(PageControl1); // These tabsheets will be cleaned up by their owner (PageControl1).
    pPage->PageControl = PageControl1;
    pPage->Caption = AnsiString("Page") + IntToStr(i);
    pPage->Name = AnsiString("ts") + pPage->Caption;
  }
}

void __fastcall TForm1::PageControl1Change(TObject *Sender)
{
  AnsiString PrevCaption, NextCaption;
  TPageControl *pPC = dynamic_cast<TPageControl *>(Sender);
  PrevCaption = pPC->FindNextPage(pPC->ActivePage, false, false)->Caption;
  NextCaption = pPC->FindNextPage(pPC->ActivePage, true, false)->Caption;
  ShowMessage(AnsiString("Previous tab caption: '") + PrevCaption +
    AnsiString("'  Next tab Caption: '") + NextCaption + AnsiString("'"));
}

/*
This example dynamically creates a Page Control, then a
series of Tab Sheets on the Page Control.
*/
#include <Comctrls.hpp>
TPageControl* ppc;
const int MAXTABS = 3;
TTabSheet* pts[MAXTABS];
const char * ppcTabTitles[] = { "ShortString", "Orders", "Items", "Parts" };
int iTabTitles = sizeof(ppcTabTitles)/sizeof(ppcTabTitles[0]);
const TColor colorPalette[12] = {
  clRed, clGreen, clYellow, clBlue, clWhite, clFuchsia,
  clTeal, clNavy, clMaroon, clLime, clOlive, clPurple};

void __fastcall TForm1::FormCreate(TObject *Sender)
{
    ppc = new TPageControl(this); // The owner (this) will clean this up.
    ppc->Parent = this;
    ppc->Align = alClient;
    for (int i=0;i<iTabTitles;i++)
  {
        pts[i] = new TTabSheet(this); // The owner (this) will clean this up.
        pts[i]->PageControl = ppc;
        pts[i]->Name = AnsiString("pts") + ppcTabTitles[i];
        pts[i]->Caption = ppcTabTitles[i];
        pts[i]->Brush->Color = colorPalette[i];
  }
}

{
This example requires a new TPageControl, with no new pages
created at design time.  The form OnCreate event handler
adds several new TabSheet controls to the Page Control.  The
Page Control’s OnChange event handler displays a message
dialog when the user changes tabs.  The message dialog
contains the captions for the tabs immediately before and
after the active tab.
}
procedure TForm1.FormCreate(Sender: TObject);
var
  i: Integer;
begin
  for i := 0 to 9 do
    with TTabSheet.Create(Self) do
    begin
      PageControl := PageControl1;
      Caption := 'TabSheet #' + IntToStr(i);
    end;
end;

procedure TForm1.PageControl1Change(Sender: TObject);
var
  PrevCaption, NextCaption: ShortString;
begin
  with (Sender as TPageControl) do
  begin
    PrevCaption :=
      FindNextPage(ActivePage, False, False).Caption;
    NextCaption :=
      FindNextPage(ActivePage, True, False).Caption;
  end;
  ShowMessage('Previous tab caption: "' + PrevCaption +
    '"    Next tab Caption: "' + NextCaption + '"');
end;

{
This example dynamically creates a Page Control, then a
series of Tab Sheets on the Page Control.
}
var
  PageControl1: TPageControl;
  pts: array[0..3] of TTabSheet;
const
  TabTitles: array[0..3] of ShortString = ('Customer', 'Orders', 'Items', 'Parts' );

procedure TForm1.FormCreate(Sender: TObject);
const
  colorpalette: Array[0..11] of TColor = (
    clRed, clGreen, clYellow, clBlue, clWhite, clFuchsia, clTeal,
    clNavy, clMaroon, clLime, clOlive, clPurple);
var
  i: Integer;
begin
  PageControl1 := TPageControl.Create(Self);
  PageControl1.Parent := Self;
  PageControl1.Align := alClient;
  for i := Low(TabTitles) to High(TabTitles) do
  begin
    pts[i]:= TTabSheet.Create(PageControl1);
    with pts[i] do
    begin
      PageControl := PageControl1;
      Name := 'ts' + TabTitles[i];
      Caption := TabTitles[i];
      Brush.Color := colorPalette[i];
   end;
  end;
end;

procedure TForm1.FormDestroy(Sender: TObject);
var
  i: Integer;
begin
  for i := Low(TabTitles) to High(TabTitles) do
  begin
    pts[i].Free;
  end;
  PageControl1.Free;
end;