Add additional controls to standard Inno Setup pages?

user_2267382 0
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How to add checkbox to the folder selection dialog created by the Inno Setup which is shown below in the image?

enter image description here

This is not a custom dialog. It is created by the Inno Setup automatically.

pascalscript inno-setup checkbox
1 Answers

Set the Parent property of the checkbox to the WizardForm.SelectDirPage:

var
  Checkbox: TNewCheckBox;

procedure InitializeWizard();
begin
  Checkbox := TNewCheckBox.Create(WizardForm.SelectDirPage);
  Checkbox.Parent := WizardForm.SelectDirPage;
  Checkbox.Top := WizardForm.DirEdit.Top + WizardForm.DirEdit.Height + ScaleY(8);
  Checkbox.Left := WizardForm.DirEdit.Left;
  Checkbox.Caption := 'My checkbox';
  // See https://stackoverflow.com/q/30469660/850848
  Checkbox.Height := ScaleY(Checkbox.Height);
end;

enter image description here

For finding the page names, see:
Inno Setup built-in control names

user_8508480
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