Yes DDE is windows only, but there's a wx class for it, don't ask why tho..
Here's a link to the (not so helpful) wxWidget docs on interprocess communication.
http://docs.wxwidgets.org/stable/wx_ipcoverview.html#ipcoverview
Here's a link to the (not so helpful) wxWidget docs on interprocess communication.
http://docs.wxwidgets.org/stable/wx_ipcoverview.html#ipcoverview