>>>(1) I think there are 8 possibilities - from 0 to 7
>>>shift1 = 2 ^0
>>>shift2 = 2^1
>>>shift3 = 2^ 2
>>>
>>>
>>>(2) I'm afraid you'll have to use a container with 3 option buttons
>>>
>>>(3) Add an unvisible spinner to the container (range 0-7) and set the controlSource of the spinner to the field
>>>
>>>(4) add code to the container
>>> - refresh = setting the options on/off (easy with bittest(field, 0) , bittest(field, 1) , bittest(field, 2)
>>>
>>>(5) add code to the optionbuttons (interactive change) to set the value of the spinner accordingly
>>>
>>>_
>>
>>Your suggestion works like a charm. What amazes me is that you came up with the whole thing (design, bit operations, etc.) in less than 10 minutes. You are very smart. Thank you.
>
>
>You're welcome - and I have always liked bit operations (and, or, xor, not)
>
>BTW, this technique is very common - look for example at the MessageBox() parameters
I have used the MessageBox parameters but never thought of them as bit operations. It is like driving a car; I never thought that there is an internal combustion engine somewhere under the hood <g>
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