Dropping raster object?

[Barry McMullin]

I expected that sending a -drop to a ZoomRaster class object would
arrange for all appropriate cleaning up, including advising the TK
interpreter to get rid of the corresponding widget.  However, when I
try it, the widget seems to be left intact.  Further, my brief
scan of the ZoomRaster (and Raster) source code didn't reveal any
code to handle dropping the widget (unlike the case for probes, where
there is clearly explicit code for doing this).  No doubt I can figure
my way around this, but I thought I'd ask first whether anyone else
has encountered/solved this problem?

Thanks,

Barry.

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| Barry McMullin, Autonomous Systems Group,  |    address@hidden |
| School of Electronic Engineering,          |  Voice: +353-1-704-5432 |
| Dublin City University, Dublin 9, IRELAND. |  FAX:   +353-1-704-5508 |
| http://www.eeng.dcu.ie/~mcmullin/home.html |                         |
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