Tk Library Source Code

## Bug info
I'm making a tool that has a combobox.  I tried adding
an option to allow the user to turn autocomplete
on/off, but it doesn't seem to be configurable after
it's been created.  (Using Tcl/Tk 8.4.13 with BWidget 1.8)

The tool does this via the '$path configure
-autocomplete $value' command, where $path is obviously
to the combobox and $value is 0 or 1. Doing a cget
shows the value is changing, but the functionality of
autocomplete never changes.

## Patch info
I decided to take a peek into the code and found it was
easy to add.  While testing, I found autopost suffered
from the same problem so I added it as well.  I'm
attaching the patch to enable/disable both with the
configure command.

The patch was made from combobox.tcl in BWidget 1.8.0.
 Unless there is reason not to, I would appreciate it
if you would incorporate this patch to make
autocomplete/autopost configurable.

HTH,
Chris

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Patch merged.  Thanks.

File Added - 201004: combobox.tcl.patch