ID_XXX Konstanten in welcher Unit???

[Luckie]

Habs gefunden.

Delphi-Quellcode:

{******************************************************************************}
{                                                                              }
{                                TwoWindows                                    }
{                                                                              }
{                    Copyright (c) 2001 Michael Puff                           }
{                            www.luckie-online.de                              }
{                           [e-mail]                             }
{                                                                              }
{******************************************************************************}
program TwoWindows;

{$R resource.res}

uses
  Windows,
  Messages;

const
  ClassName1 = 'Wnd1Class';
  ClassName2 = 'Wnd2Class';
  Window1Name = 'Window 1';
  Window2Name = 'Window 2';
  WindowWidth1 = 500;
  WindowHeight1 = 400;
  WindowWidth2 = 300;
  WindowHeight2 = 200;

  IDC_BUTTON1 = 1;  // <--- !!!!!

Schock-schwere-Not. Die Dinger lassen sich mit Delphi 2006 immer noch ohne Probleme kompilieren.