>>My clients press ENTER to navigate through a form. Checkbox causes a problem here,
>> as it's value changes on pressing ENTER key. I will need to use Y/N textbox instead.
>> I have not subclasses the checkbox and it has already been implemented in the project.
>
>Behold the wonders of subclassing!
>
>>Is there a way to change the behaviour of Checkbox all over the project in one go?
>
>You can do it at a form level:
>1) Set each form's KeyPreview property to True.
>2) add this code to each form's KeyPress event:
>
>lparameters nKeyCode, nShiftAltCtrl
>if nKeyCode = 13 and this.activecontrol.class = "Checkbox"
> * Suppress enter's default behaviour..
> nodefault
> * .. but move to next control
> keyboard '{tab}' plain
>endif

Stuart,
I think it'd be better to check baseclass instead.
.. lower(this.activecontrol.baseclass) == "checkbox"