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author | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-05-01 16:09:54 +0000 |
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committer | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-05-01 16:09:54 +0000 |
commit | 4c4631c2daaf7b2418c1f0e39292c8ee27a64813 (patch) | |
tree | dfeb96c4772df8caba4e01e749c8f3e1262f8fe0 /ext/tk/README.fork | |
parent | ce23680755e4e9ab0eed9dc6adb091ef7f1c58cb (diff) | |
download | ruby-4c4631c2daaf7b2418c1f0e39292c8ee27a64813.tar.gz |
* renewal Ruby/Tk
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/tk/README.fork')
-rw-r--r-- | ext/tk/README.fork | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/ext/tk/README.fork b/ext/tk/README.fork new file mode 100644 index 0000000000..cda89b003c --- /dev/null +++ b/ext/tk/README.fork @@ -0,0 +1,29 @@ +Ruby/Tk does NOT support forking the process on which Tk interpreter +is running (unless NEVER control Tk interpreter under the forked child +process). In the library 'tk.rb', a Tk interpreter is initialized. +Therefore, if you want running Tk under a child process, please call +"require 'tk'" in the child process. + +For example, the following sample1 will NOT work, and sample2 will +work properly. + +---<sample1: NOT work>--------------------------------------- +require 'tk' ## init Tk interpreter under parent process + +exit! if fork ## exit parent process + +## child process +TkButton.new(:text=>'QUIT', :command=>proc{exit}).pack +Tk.mainloop +------------------------------------------------------------- + +---<sample2: will work>-------------------------------------- +exit! if fork ## exit main process + +## child process +require 'tk' ## init Tk interpreter under child process +TkButton.new(:text=>'QUIT', :command=>proc{exit}).pack +Tk.mainloop +------------------------------------------------------------- + + 2004/04/20 Hidetoshi NAGAI |