Custom Setup DLL

#include "stdafx.h"
#include <ce_setup.h>

const TCHAR szTitle[]       = _T("CESetup DLL");
const TCHAR szInst_Init[]   = _T("Install_Init\n\nContinue?");
const TCHAR szInst_Exit[]   = _T("Install_Exit\n\nContinue?");
const TCHAR szUninst_Init[] = _T("Uninstall_Init\n\nContinue?");
const TCHAR szUninst_Exit[] = _T("Uninstall_Exit");

/**
 * Install_Init
 */
codeINSTALL_INIT Install_Init(HWND    hwndParent,
                              BOOL    fFirstCall, // is this the first time this function is being called?
                              BOOL    fPreviouslyInstalled,
                              LPCTSTR pszInstallDir)
{
  // TODO: Add custom installation code here

  // To continue installation, return codeINSTALL_INIT_CONTINUE
  // If you want to cancel installation, return codeINSTALL_INIT_CANCEL

  if (IDOK == MessageBox(hwndParent, szInst_Init, szTitle, MB_OKCANCEL))
    return codeINSTALL_INIT_CONTINUE;
  else
    return codeINSTALL_INIT_CANCEL;
}

/**
 * Install_Exit
 */
codeINSTALL_EXIT Install_Exit(HWND    hwndParent,
                              LPCTSTR pszInstallDir,  // final install directory
                              WORD    cFailedDirs,
                              WORD    cFailedFiles,
                              WORD    cFailedRegKeys,
                              WORD    cFailedRegVals,
                              WORD    cFailedShortcuts)
{
  // TODO: Add custom installation code here

  // To exit the installation DLL normally, return codeINSTALL_EXIT_DONE
  // To unistall the application after the function exits, return codeINSTALL_EXIT_UNINSTALL

  if (IDOK == MessageBox(hwndParent, szInst_Exit, szTitle, MB_OKCANCEL))
    return codeINSTALL_EXIT_DONE;
  else
    return codeINSTALL_EXIT_UNINSTALL;
}

/**
 * Uninstall_Init
 */
codeUNINSTALL_INIT Uninstall_Init(HWND hwndParent, LPCTSTR pszInstallDir)
{
  // TODO: Add custom uninstallation code here

  // To continue uninstallation, return codeUNINSTALL_INIT_CONTINUE
  // If you want to cancel installation, return codeUNINSTALL_INIT_CANCEL

  if (IDOK == MessageBox(hwndParent, szUninst_Init, szTitle, MB_OKCANCEL))
    return codeUNINSTALL_INIT_CONTINUE;
  else
    return codeUNINSTALL_INIT_CANCEL;
}

/**
 * Uninstall_Exit
 */
codeUNINSTALL_EXIT Uninstall_Exit(HWND hwndParent)
{
  // TODO: Add custom uninstallation code here

  MessageBox(hwndParent, szUninst_Exit, szTitle, MB_OK);
  return codeUNINSTALL_EXIT_DONE;
}