"disabling" a coloroverlay?

[dunbarx at aol.com]

Klaus.



Something not right, all right.



I made a new button "b3", and put this in a script somewhere:




on mouseUp
   get the coloroverlay["color"] of btn "b3"
   
    if it = "" then
      answer "Yep, empty, all right" 
   end if
   
   combine it with return --just to make sure it is an ordinary, not array, variable
   if it = "" then
      answer "Yep, empty, all right" 
   end if


   set the coloroverlay["color"] of btn "b3" to ""
end mouseUp



The variable "it" is always empty, but the property cannot be set to empty. It is possible to set it, as you know, to anything else, inlcuding "0".


Craig











-----Original Message-----
From: Klaus major-k <klaus at major-k.de>
To: How to use LiveCode <use-livecode at lists.runrev.com>
Sent: Mon, Sep 23, 2013 8:38 am
Subject: "disabling" a coloroverlay?


Hi friends,

see subject, how do I "switch off" of the coloroverlay["color"] 
setting of a control?

-> set the  coloroverlay["color"] of btn XYZ to empty
Gives an error..

Maybe set it ot 0? 
Or will the 0 be interpreted as a "shortcut" for 0,0,0?

Any hints welcome, thanks :-)


Best

Klaus
--
Klaus Major
http://www.major-k.de
klaus at major-k.de


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