How do read and set the value of a checkbox in an InnoSetup wizard page?

Question

I have added a checkbox to the \"Additional Tasks\" page of an InnoSetup script with

[Tasks]
Name: \"StartMenuEntry\" ; Description: \"Start my app when Wind         


        

Answer 1

Great answer above. Gave me just what I needed.

I had a case where I have a bunch of secondary installers that I used the 'checkonce' option on, but I wanted them to be re-checked if the folder was missing (e.g. the user wiped out the install folder manually), e.g.

[Tasks]
Name: "InstallPython" ; Description: "Install Python"     ; Flags: checkedonce
Name: "InstallNPP"    ; Description: "Install Notepad++"  ; Flags: checkedonce

[Code]
procedure CurPageChanged(CurPageID: Integer);
var
ItemIx: Integer;

begin
    if CurPageID = wpSelectTasks then begin
        if not DirExists(ExpandConstant('{app}')) then begin
            for ItemIx := 0 to (WizardForm.TasksList.Items.Count - 1) do
                WizardForm.TasksList.Checked[ItemIx] := True;
        end
    end
end;