comp.lang.idl-pvwave archive: archive » Re: How to know a window id is valid

Home » Public Forums » archive » Re: How to know a window id is valid

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: How to know a window id is valid [message #7082 is a reply to message #7072]

Thu, 19 September 1996 00:00

thompson
Messages: 584
Registered: August 1991

Senior Member

gfu@shark.gsfc.nasa.gov (Gary Fu) writes:

> Hello,

> Is there a command to tell that a window id created by a
> draw window widget is valid for WSET to use ?

The call

DEVICE, WINDOW_STATE=WIN_STATE

returns an array into the variable WIN_STATE, with 0 for windows that don't
exist, and 1 for windows that do. One can then use a statement like

VALID = WIN_STATE(WINDOW_ID)

to return whether or not the window is valid.

Bill Thompson

Report message to a moderator

[Message index]

		Re: How to know a window id is valid By: davidf on Fri, 20 September 1996 00:00
		Re: How to know a window id is valid By: davidf on Fri, 20 September 1996 00:00
		Re: How to know a window id is valid By: Peter Mason on Fri, 20 September 1996 00:00
		Re: How to know a window id is valid By: thompson on Thu, 19 September 1996 00:00

Previous Topic:	BEYOND TECHNOLOGY
Next Topic:	Re: Drawing axes for volumetric data

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 03:14:38 PDT 2025

Total time taken to generate the page: 1.12030 seconds