Hello!

On Tue, Sep 1, 2009 at 5:44 PM, Sir Diddymus<sirdidd...@googlemail.com> wrote:
> Hi all,
>
>> (defmacro RunQt [args & body]
>>   `(
>>     (try
>>       (QApplication/initialize (into-array [~args]))
>>       (catch RuntimeException e# (println e#)))
>>     ~...@body
>>     (QApplication/exec)))

(defmacro RunQt [args & body]
   `(do ; <= here is the error
     (try
       (QApplication/initialize (into-array [~args]))
       (catch RuntimeException e# (println e#)))
     ~...@body
     (QApplication/exec)))

Without the 'do the form was compiled as a function invocation, and
thus it tries to call the return value of the try form (which is nil)
only once all args are computed (ie when you close the window).

Christophe

-- 
Professional: http://cgrand.net/ (fr)
On Clojure: http://clj-me.blogspot.com/ (en)

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to