[Tcl-bugs] [ tcl-Bugs-1216775 ] tk_dialog bug: grab failed in tk_dialog, line 142

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Bugs item #1216775, was opened at 2005-06-08 00:52
Message generated for change (Settings changed) made by dkf
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>Category: 69. Other
>Group: current: 8.4.11
Status: Open
>Resolution: Invalid
Priority: 5
Submitted By: Claudio Fontana (sick_soul)
>Assigned to: Jeffrey Hobbs (hobbs)
Summary: tk_dialog bug: grab failed in tk_dialog, line 142

Initial Comment:
I am running tclsh8.4 under GNU/Linux and requiring
package Tk and Expect. Please direct me to the proper
bug tracking if this is not the correct place to report.

The problem I am experiencing is that command tk_dialog
raises an error like this:

grab failed: window not viewable
grab failed: window not viewable
    while executing
"grab $w"
    (procedure "tk_dialog" line 142)

when the user clicks and drags continuously a scrollbar
up and down in the app (thus "forcing" focus always on
the scrollbar), and in the meantime some event occurs
that pops up a dialog (via tk_dialog).

I solved the problem by patching dialog.tcl (which I
have in /usr/lib/tk8.4/) waiting for the visibility of
the dialog to change before grabbing.

A simple patch in unified format against dialog.tcl is
attached.

Claudio


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