I've tried hard to modify the roadgraph plugin but get no progress in long time, cuz I have no experience about developing or modifying an QGIS plugin. I want to use this plugin to give me distances between many points in one time(ex. use for loop), and I downloaded the source code via svn(described in GIS-LAB). P.S the code is written in C++.(and some UI code seem conducted under QT4)
My workspace is in WIN7 64-bits, and using eclipse(with minGW64), but when I load the source code to eclipse, I got many errors, and I have tried many ways to delete those bugs(like adding path,etc...), but some errors are still there, and I got confused.
So I want to ask some experience modifying or developing QGIS plugins that what background should I need？(Is win7 a capable place to modify the roadgraph plugin？) What should I set before I modify it？
Please give me some advices on modifying QGIS plugins, thank you.