| No CR Events in Table Widgets in IDL 5.0 [message #9236] |
Wed, 04 June 1997 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Name: David Fanning
E-mail Address: davidf@dfanning.com
IDL version: { x86 Win32 Windows 5.0 Apr 28 1997}
Platform and OS: WindowsNT 4.0, Service Pack 1
Description of Problem: --------------------------------------------
IDL documentation seems to imply that table widgets
generate carriage-return events when the EDITABLE
keyword is set and the ALL_EVENTS keyword is turned
off.
I cannot get *any* table widget events in my event
handler under these circumstances, although the
information in the widget does change and appears to
get edited correctly.
Example Code: --------------------------------------------------------
PRO TABLE_EVENT, event
Print, 'In TABLE_EVENT event handler'
END
PRO TABLE
tlb = Widget_Base(Column=1)
values= Findgen(10)
values = Reform(values, 1, 10)
tableID = WIDGET_TABLE(tlb, /Editable, XSize=1, YSize=10, $
Value=values)
Widget_Control, tlb, /Realize
XManager, 'table_example', tlb, /No_Block
END
Known Workarounds or Fixes:-----------------------------------------
Set the ALL_EVENTS keyword and handle *all* events yourself. :-(
RSI Technical Support Response: ------------------------------------
Technical support confirms that this is a bug. They point
out that you can look for the CR (ASCII character 13) like
this:
if (event.type eq 0) then $
if (event.ch eq 13B) then $
PRINT, 'Carriage return'
Cheers,
David
----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
Customizable IDL Programming Courses
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
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