---
** [bugs:#1275] changing num radio cells in a subpath via loadbang causes a TCL
error**
**Status:** open
**Group:** v0.47
**Created:** Mon Nov 28, 2016 07:41 PM UTC by danomatika
**Last Updated:** Mon Nov 28, 2016 07:41 PM UTC
**Owner:** nobody
**Attachments:**
-
[hradio-error.pd](https://sourceforge.net/p/pure-data/bugs/1275/attachment/hradio-error.pd)
(262 Bytes; application/octet-stream)
On Mac OS 10.11.6, using a custom build of Pd 0.47-1:
I was using an abstraction from rjlib that shows an hradio object in a GOP area
and tracked down the following bug.
Changing the number of cells in a radio object placed in a subpatch via a
loadbang-ed number message to change the numer of cells results in an error:
~~~
(Tcl) INVALID COMMAND NAME: invalid command name ".x7d811430.c"
while executing
".x7d811430.c delete 7aa63e00BASE0"
("uplevel" body line 40)
invoked from within
"uplevel #0 $docmds"
~~~
>From what I can tell, the loadbang fires before the radio is drawn for the
>first time since it is in a subpatch, so there are no cells to delete leading
>to the error. This also, for some reason, causes sliders and radios to be come
>unresponsive since the controls no longer re-draw in the particular patch
>where I first had the bug.
The fix I have for now is to add a 5ms delay after the loadbang. I think the
real fix is to only call IEM_GUI_DRAW_MODE_ERASE in hradio_number() if the
radio has already been drawn.
Attached is a patch which triggers the error.
---
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