How does setFlags work for Ruby?

I can't get the following working:

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item = Qt::ListWidgetItem.new
item.setFlags(Qt::ItemIsSelectable | Qt::ItemIsEditable)

Can you please provide the error message you are encountering?

Well, there is no error message.
The item just greys out (becomes unselectable).

What happens if you just pass Qt::ItemIsSelectable? I suspect the | may be triggering an or operation, instead of combining the two enumerators as it would in C++.

bcooksley wrote:What happens if you just pass Qt::ItemIsSelectable? I suspect the | may be triggering an or operation, instead of combining the two enumerators as it would in C++.

Nope. That doesn't do it either.
But I tried something different and well...

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item = Qt::ListWidgetItem.new
puts item.flags # => 53

Okay thats good to know.
So I tried...

item.setFlags(54)
puts item.flags # => 54

And the item is editable!
Looking at this table:

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Qt::NoItemFlags   0   It does not have any properties set.
Qt::ItemIsSelectable   1   It can be selected.
Qt::ItemIsEditable   2   It can be edited.
Qt::ItemIsDragEnabled   4   It can be dragged.
Qt::ItemIsDropEnabled   8   It can be used as a drop target.
Qt::ItemIsUserCheckable   16   It can be checked or unchecked by the user.
Qt::ItemIsEnabled   32   The user can interact with the item.
Qt::ItemIsTristate   64   The item is checkable with three separate states.

53 is a combination of 1, 4, 16 and 32 with 2 (Qt::ItemIsEditable) missing.
Meaning that setting the flag to 55 it would include 2 as well and thus enabling the Qt::ItemIsEditable flag!
Though 54 already enables editing, so I'm not so sure about my explanation, but that makes the most sense to me.

Good to see you found a solution, although ideally one should have been able to use the enumerators Qt provides.
I suspect 54 means Qt::ItemIsEditable (2), Qt::ItemIsDragEnabled (4), Qt::ItemIsUserCheckable (16) and Qt::ItemIsEnabled (32).