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Detect APP_SCROLL or SCROLL [message #50903]

Tue, 24 October 2006 20:32

Robbie
Messages: 165
Registered: February 2006

Senior Member

Is there a nice way to detect whether a widget_draw is using APP_SCROLL
or SCROLL?
I'm attempting to write code which will handles both scenarios, but I
can't find a nice way to do it.

Here is a known method, but I'm concerned about the portability of it.

function is_app_scroll, id
geom = widget_info(id,/geom)
widget_control, id, GET_VALUE=oWindow
oWindow -> GetProperty, DIMENSIONS=dimensions
if ((dimensions[0] eq geom.DRAW_XSIZE) and $
(dimensions[1] eq geom.DRAW_YSIZE)) then $
return, 0
if ((dimensions[0] eq geom.XSIZE) and $
(dimensions[1] eq geom.YSIZE)) then $
return, 1
message, 'Incompatible dimensions'
end

Thanks

Robbie

http://www.barnett.id.au/idl/

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