But on the Windows builds, it's very spotty. I have a hard time
describing it. When over a listbox, it works maybe 75% well. Over
a text box, it maybe works 25%. Sometimes, you can actually see
the entire thing. But most of the time, it's either there for a
milisecond then gone, or it's corrupted, and/or its corrupting the
text in the editfield underneath it.
Do I need to refresh it in some way? Why does it work on the
mac, but not on Windows?
Perhaps it is a double-buffering issue, which is done automatically
on the Mac but not on Windows. You can check this out by first
creating a Picture object, drawing your content into the Picture,
then draw the Picture object onto the canvas.
Jack,
Thanks for the tip. I was sure that was going to be it, but if I did
the double-buffering correctly, it doesn't seem to have made much
difference. I took some snaps today (but left them at work). Here is
some more behavior explanation:
- in the listbox view, it draws nearly perfectly, except that the
listbox scrollbox draws over it, and the neighboring control to the
right, which is also a listbox, draws over it entirely. As if the
canvas was behind it (but it's not). A static text also located to
the right of it will also draw over the canvas.
- In an edit field, you can't really see it much, UNLESS you
highlight a different piece of text in the edit field. Then, if you
go over a tag, you see the tooltip just about perfectly. If nothing
is highlighted (selected) in the edit field, then you can kind of see
it as you move the mouse around, but it just looks like a fuzzy gray
field, and undraws after 1/10 a second or so.
Perhaps I did the double-buffering wrong? I used an example I found
in the IDE help system.
Regards,
Micah
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