How to skip all the wizard pages and go directly to the installation process?

Question

At this time I\'m using 3 wizard pages (Preparing to Install, Installing and Finished page) in my installer.

I want to keep the process as

Answer 1

Proper way is to disable all the pages by the following directives:

DisableWelcomePage=yes
DisableDirPage=yes
DisableProgramGroupPage=yes
DisableReadyPage=yes

But, even if you do so, the ready page will still show. I've tried to find a way how to properly skip this page and go directly to the installation step with no success. I haven't checked what's happening inside, but so far I found a workaround in posting a click notification message to the next button which triggers the click event and moves to the installation process:

[Setup]
AppName=My Program
AppVersion=1.5
DefaultDirName={pf}\My Program
DisableWelcomePage=yes
DisableDirPage=yes
DisableProgramGroupPage=yes
DisableReadyPage=yes

[Code]
const
  BN_CLICKED = 0;
  WM_COMMAND = $0111;
  CN_BASE = $BC00;
  CN_COMMAND = CN_BASE + WM_COMMAND;

procedure CurPageChanged(CurPageID: Integer);
var
  Param: Longint;
begin
  { if we are on the ready page, then... }
  if CurPageID = wpReady then
  begin
    { the result of this is 0, just to be precise... }
    Param := 0 or BN_CLICKED shl 16;
    { post the click notification message to the next button }
    PostMessage(WizardForm.NextButton.Handle, CN_COMMAND, Param, 0);
  end;
end;

That will work, but I still hope there's a cleaner way to skip all the pages and go directly to the installation process.