在c++ programming with qt4 一书的第二章Shape-Changing Dialogs一节中,有这个例子:
1. Click File|New Form and choose the "Dialog with Buttons Right" template.
2. Create the More button and drag it into the vertical layout, below the vertical spacer. Set the More button's text property to "&More", and its checkable property to "true". Set the OK button's default property to "true".
当第一步建一个"Dialog with Buttons Right"之后,有两个按钮,一个OK,一个Cancel,这两个按钮是一个buttonBox组件,我选择OK按钮就会选择这个buttonBox组件,在第二步要求Set the OK button's default property to "true".的时候我怎样才能单独选择OK按钮进行编辑?