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Hi David and everyone.
I got around the BeginDrag method causing a
premature tick in a CheckBox. I have a more serious problem now which I've
been trying to solve for several hours but I'm not getting
anywhere.
I'm getting either an access violation or an
"Abstract Error" when dragging checkboxes in the CheckGroup. In my
larger program, it actually works fine for 1 or 2 drags, but the next
one produces the error. In the test program, it occurs every
time.
The error is occuring in the System.GetDynaMethod
assember code which doesn't help me much. Here is a download of
the component and a small test program. I hope someone can
help.
Compile, run, and drag one item onto
another to produce the error.
In the cbDragDrop procedure, a copy of the dragged
checkbox details (CBOld) is inserted at the drop location, and then the
dragged checkbox is freed. The error does
not occur if I remark out the line: OldCB.Free. Perhaps the freed
checkbox is being accessed somewhere but I can't establish where. I've
tried break points in every procedure/function.
It's a little messy with the TList and
TStringList being used together but I'll clean that up
later.
Many thanks,
Ross.
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