Inno Setup: Capture control events in wizard page

Question

In a user defined wizard page, is there a way to capture change or focus events of the controls? I want to provide an immediate feedback on user input in some dropdowns (e.g. a message box)

Answer 1

Since the scripting in innosetup is loosely based on Delphi, the controls should have some events like OnEnter (= control got focus) and OnExit (= control lost focus). You can assign procedures to these events, something like this: ComboBox.OnExit := ComboBoxExit;

procedure ComboBoxExit(Sender: TObject);
begin

end;

I don't have access to Innosetup right now, so you will need to lookup the available events and parameters for the procedures.

Answer 2

Took me some time to work it out, but after being pointed in the right direction by Otherside, I finally got it (works for version 5.2):

[Code]

var 
    MyCustomPage : TWizardPage;

procedure MyEditField_OnChange(Sender: TObject);
begin
    MsgBox('TEST', mbError, MB_OK);
end;

function MyCustomPage_Create(PreviousPageId: Integer): Integer;
var 
    MyEditField: TEdit;
begin
    MyCustomPage := CreateCustomPage(PreviousPageId, 'Caption', 'Description');
    MyEditField  := TEdit.Create(MyCustomPage);
    MyEditField.OnChange := @MyEditField_OnChange;
end;