Ebook: Cross-Platform GUI Programming with wxWidgets

I was never able to get DialogBlocks to build the wx library. Kept freezing halfway through. Eventually I gave up and spent a lot of time setting up an Eclipse environment. (This is on an old Powerbook...) Haven't worked with wx in windows or linux yet, but so far I can say that this book is NOT for the beginner. You should have a pretty solid foundation in windowed application design, makefiles and the gcc linker.

This isn't the book's fault, but cross-platform GUI development is still quite complicated. wxWidgets is a great tool that has really grown into maturity, but it is certainly not panacea :) Fortunately, there are some very patient and experienced developers in the wx-user mailing list.