Conditionally add registry key based on checkbox answer

问题

I'm using Inno Setup for my Windows .NET app. I'm asking the user if they want to start the app with Windows with the following code:

[Tasks]
Name: "TaskEntry"; Description: "Start with Windows?"; GroupDescription: "Startup";

[code]
function NextButtonClick(CurPageID: Integer): Boolean;
begin
  Result := True;
  if CurPageID = wpSelectTasks then                                          
  begin
    if WizardForm.TasksList.Checked[3] then
      MsgBox('Startup has been checked.', mbInformation, MB_OK)
    else
      MsgBox('Startup has not been checked.', mbInformation, MB_OK);
  end;
end;

procedure CurPageChanged(CurPageID: Integer);
begin
  if CurPageID = wpSelectTasks then
    WizardForm.TasksList.Checked[3] := False;
end;

How do I add the registry key instead of the message box?

I'm aware that I can do it unconditionally with:

[Registry]
Root: HKCU; Subkey: "Software\Microsoft\Windows\CurrentVersion\Run"; ValueType: string; \
    ValueName: "key"; ValueData: "{app}\{#MyAppExeName}"; Flags: uninsdeletevalue

回答1:

You don't need any code for this. Add a Tasks parameter to your registry entry and it will be processed only if this task is selected by the user:

[Registry]
Root: HKCU; Subkey: "Software\  [...] Flags: uninsdeletevalue; Tasks: TaskEntry

来源：https://stackoverflow.com/questions/10825239/conditionally-add-registry-key-based-on-checkbox-answer