thanks a lot.. I think passing the main object only by reference.. so, this does not causes any overhead..
am i correct..? On Fri, Apr 10, 2009 at 4:02 PM, Dave Angel <da...@ieee.org> wrote: > > > Murali kumar wrote: > >> hi all.. >> I'm posted in a word doc becoz to add a image to explain my problem.. >> also I think gmail automatically scans for attachments.. >> >> anyway.. here's my problem...( see the image) >> >> http://www.2shared.com/file/5299759/45e4c614/load.html >> >> Using : Python 2.6 , wxPython 2.8.9 >> <....snip...> >> >> * I don’t know how to return config file or data to mainApp object when >> pressing load button. * >> >> >> * Is it easy to return filename only and load the file’s data into >> mainApp >> object in menu handler itself? * >> >> >> Please suggest me right direction.. and tell me how to do it? >> >> Usually where I can get these informations.. (suggest links and books..) >> >> >> Thanks for any advice.... >> >> >> > > Most of the widget classes in your code should be derived classes, so they > can hold extra instance data & event handlers and such. So that means you > can have extra parameters on the constructor, besides the ones the base > class requires. Use one or more of those extra parameters to store your own > information about the hierarchy. > > Simplest example is to add the app instance to each constructor. Then each > widget object would know how to call back into the app to do some work, or > to load data into a common place. > > DaveA > > -- > http://mail.python.org/mailman/listinfo/python-list >
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