How to display message box when starting up an Inno Setup installer

问题

How to display a message box information, when starting up an installer made in Inno Setup?

Like this setup of Reloaded Games does:

回答1:

Call the MsgBox function from the InitializeSetup event function:

function InitializeSetup(): Boolean;
begin
  MsgBox('Some message.', mbInformation, MB_OK);

  Result := True;
end;

来源：https://stackoverflow.com/questions/40378046/how-to-display-message-box-when-starting-up-an-inno-setup-installer