Hi, I'm starting to use the ltk library to build a twitter client and I'm liking it a lot. I'm having trouble trying to read the properties of widgets. I know for to set them, using configure, but I can't read them back. More specifically, I'm trying to read the width and height of a canvas. Any help would be appreciated. Thanks, André
Hi Andre,
the direct counterpart to configure is cget which can be used to query properties. In your case however, I guess you want to catch the resizing of a canvas widget. To do that, bind the <configure> event like: (bind canvas "<Configure>" (lambda (event) (format t "I am ~a wide and ~a high~%" (event-width event) (event-height event))) If you decide to publish your client, please notify the list, as its great to know when someone writes an LTk based application :)
Peter
On Thu, Sep 1, 2011 at 4:34 AM, Andre RsFiveTwo rs.andre@gmail.com wrote:
Hi, I'm starting to use the ltk library to build a twitter client and I'm liking it a lot. I'm having trouble trying to read the properties of widgets. I know for to set them, using configure, but I can't read them back. More specifically, I'm trying to read the width and height of a canvas. Any help would be appreciated. Thanks, André
ltk-user site list ltk-user@common-lisp.net http://common-lisp.net/mailman/listinfo/ltk-user
Thank you Peter! That's exactly what I was looking for! When I finish the client I'll surely notify the list. Thank you again for your help and for the great GUI library! Cheers! André
On Fri, Sep 2, 2011 at 12:11 PM, Peter Herth herth@peter-herth.de wrote:
Hi Andre,
the direct counterpart to configure is cget which can be used to query properties. In your case however, I guess you want to catch the resizing of a canvas widget. To do that, bind the <configure> event like: (bind canvas "<Configure>" (lambda (event) (format t "I am ~a wide and ~a high~%" (event-width event) (event-height event))) If you decide to publish your client, please notify the list, as its great to know when someone writes an LTk based application :)
Peter
On Thu, Sep 1, 2011 at 4:34 AM, Andre RsFiveTwo rs.andre@gmail.com wrote:
Hi, I'm starting to use the ltk library to build a twitter client and I'm
liking
it a lot. I'm having trouble trying to read the properties of widgets. I know for to set them, using configure, but I can't read them back. More specifically, I'm trying to read the width and height of a canvas. Any help would be appreciated. Thanks, André
ltk-user site list ltk-user@common-lisp.net http://common-lisp.net/mailman/listinfo/ltk-user
ltk-user site list ltk-user@common-lisp.net http://common-lisp.net/mailman/listinfo/ltk-user
-
Andre RsFiveTwo -
Peter Herth