Using LC 7.0.2 rc-2, I was trying to implement a ‘select all’ function by using
loops to select each type of object on a card which contains the full gamut -
fields, graphics, images, buttons and groups. This worked as far as I can see,
and after doing all the selecting, I was able to group the selected objects
(you just script ‘group’ without any parameters). However, after doing my
planned action with these objects (I just wanted to move them a certain
distance on the card), I wanted to reverse the situation, firstly by ungrouping
the last group (I have stored its ID) and then by doing
set the selected to empty
This last statement resulted in an execution error: “controls don’t have the
same owner”.
After a lot of experimentation, I found out that this error came from the fact
that the card contains groups, and I had selected the objects within the groups
as well as the groups themselves (how could I not?). So although the owner of
each group is the card, the owner of the objects within each group is the group
itself.
So the error is explained, but it seems to me meaningless. If I can select
everything on a card and make a well-ordered list of the selected objects (‘the
selectedObject') then why in the name of any deity you like to mention should
it be an error to deselect them?
Do people agree that this is a bug, or at best an unwanted feature? Can anyone
suggest what purpose it might serve?
A further ‘interesting’ fact. If one goes through a selection process of this
kind, and uses the message box to look at the selectedObject, one sees a list,
as described in the LC Dictionary, with each selected object’s reference on a
separate line. But if you put
put the number of lines of the selectedObject
into the message box, you get zilch (actually I think you get the error
described earlier, but I can’t see it). But if you put
put the selectedObject into temp
put the number of lines of temp
You get an integer, as expected. Now that really is a bug, as far as I can see.
Guess I’d better report it.
Puzzled
Graham
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