diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
commit | d464704f111d211c1f1ff9ef23ef1d755054be00 (patch) | |
tree | b58b17b645dc463322e5fca57fe282360db659c9 /ruby_1_8_5/ext/tk/README.fork | |
parent | e4f06b3f2dec4b5d6334c5e9907e1cecbf649fc4 (diff) |
add tag v1_8_5_54
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_5/ext/tk/README.fork')
-rw-r--r-- | ruby_1_8_5/ext/tk/README.fork | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/ruby_1_8_5/ext/tk/README.fork b/ruby_1_8_5/ext/tk/README.fork new file mode 100644 index 0000000000..707d78fc12 --- /dev/null +++ b/ruby_1_8_5/ext/tk/README.fork @@ -0,0 +1,34 @@ +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. + +# If do fork and exec(<new Ruby/Tk>) on the child process, you can +# control Ruby/Tk interpreter on the child process by 'send' command +# of Tcl/Tk. About this, please see Tk.appsend and Tk.rb_appsend, or +# 'remote-tk.rb' and the sample 'sample/remote-ip_sample.rb'. + +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 +------------------------------------------------------------- + + 2004/05/22 Hidetoshi NAGAI |