On Nov 9, 2010, at 10:47 AM, Devin Asay wrote:
On Nov 9, 2010, at 6:38 AM, Peter Brigham MD wrote:
I'm just fooling around with trying out an animated cursor, and I
can't get it to work. I tried importing an animated GIF then setting
the cursor to it, but I only get what looks like an opaque white mask
of the first frame of the GIF and no animation. Do I conclude that I
have to cycle through the frames of the GIF explicitly via script? I
would have thought that just setting the cursor to the image id
number
would take care of that. I can do this with a button icon -- just
setting the icon of the button to the image ID of the GIF results
in a
nice animated button image. Why doesn't his work with a cursor?
Peter,
When I have used animated gifs, I've just shown then hidden an image
object. Of course, that's not really the same because they don't
follow your mouse movement like a mouse cursor.
I'm not sure exactly what's going on behind the scenes with the
'busy' cursor. I got curious and looked into it. The cursor icons
are in a stack called "revCursors" for Windows and *nix, and a stack
called "revMacCursors" for Mac OS. They're just image objects. I
would think you could just replace the existing images with your own
colorized ones, making sure the image ids match, and it should "just
work".
That said, LiveCard 4.5 is supposed to have enhanced cursor support,
including cursors with alpha blending.
I'm still using 4.0, since 4.5 crashes my most-often-used stack
(reported to the support team, no word yet on resolution). I just
tried out my little "test animated cursor" stack in 4.5 and what I get
is a fixed cursor image (I assume the first image of the set). The one
improvement over 4.0 is that the exact same handler in 4.0 changes the
cursor to the mask (white) of the first image. At least 4.5 fills in
the color. But no animation in either.
So it seems like you could just set the cursor to the image id of
your choosing, and increment it in a repeat loop, just like 'set
cursor to busy'. Not tested:
put 67890,67891,67892,67893,67894,67895,67896,67897 into tAnimCursor
repeat with i = 1 to 100
put item i wrap (the number of items in tAnimCursor) of tAnimCursor
into tCurrentCursor
set the cursor to tCurrentCursor
wait 10
end repeat
Seems like this ought to work.
Well, OK, but I went ahead and used the http://ajaxload.info/ site to
download a great animated GIF cursor. So what do I do with that to
extract the individual images and list them separately in a loop? It
does seem that setting a cursor to an animated GIF ought to work out
of the box the way setting a button icon to an animated GIF does....
But if there's a workaround for cursors I'd settle for that for now.
-- Peter
Peter M. Brigham
pmb...@gmail.com
http://home.comcast.net/~pmbrig
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