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Re: Retrieve content of Droplist [message #15290 is a reply to message #15288]

Mon, 03 May 1999 00:00

Henry Chapman
Messages: 10
Registered: February 1997

Junior Member

"Thomas C. Stubbings" wrote:
>
> Although it may be trivial, I cannot manage to retrieve the currently
> selected value of a droplist (the online help of IDL is somehow a bad
> joke...). It is defined as follows:
>
> WID_DROPLIST_RULEWT = Widget_Droplist(WID_BASE_0, $
> UNAME='WID_DROPLIST_RULEWT' ,XOFFSET=4 ,YOFFSET=45 $
> ,SCR_XSIZE=135 ,SCR_YSIZE=23 ,TITLE='Fusion rule' ,VALUE=[ $
> 'average', 'waverage', 'maximum', 'minimum', 'himaximum', $
> 'hifirst', 'hisecond', 'hi/lo', 'lo/hi' ])
>
> Can anyone help? Thanks!
>
> Thomas

In your event procedure:

wid_droplist = widget_info(event.top,
find_by_uname='WID_DROPLIST_RULEWT')
selected = widget_info(wid_droplist, /droplist_select)

From the widget_info help:

DROPLIST_SELECT
This keyword applies to widgets created with the WIDGET_DROPLIST
function.

Set this keyword to return the zero-based number of the
currently-selected
element (i.e., the currently-displayed element) in the specified
droplist
widget.

Henry.

--
Henry Chapman mailto:chapman9@llnl.gov
Information Science & Technology Program phone:(925)423-1580
Lawrence Livermore National Lab fax:(925)423-1488
L-395, 7000 East Ave., Livermore CA 94550

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[Message index]

		Re: Retrieve content of Droplist By: mgs on Mon, 03 May 1999 00:00
		Re: Retrieve content of Droplist By: davidf on Mon, 03 May 1999 00:00
		Re: Retrieve content of Droplist By: Henry Chapman on Mon, 03 May 1999 00:00

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