It is possible to use C libraries from eC without any special effort, and flat C functionality of eC applications (no object oriented or eC specific feature) from a C program.

To use another language such as C++, right now it can be done but only at a C interface level.

for example, i want use eC to program a aplication, and i want use wincap lib.
how can i do it ?

I am currently writing the next section on object oriented topics. I’m hoping to finish writing the book by May or so, and I may post updated versions online until then.

Note that the SDK comes with numerous samples (The Chess game one being the one the book will cover in details) from which you can learn most of these things.

Right now, strings in eC are basically C null terminated strings, with the standard C library string routines readily available, and a number of string related functions available in the core eC framework as well.

And showing a file dialog box is quite easy: FileDialog dialog { }; if(dialog.Modal () == ok) { /* use dialog.filePath */ }

I’m also fully available for support, either on irc.freenode.net / #ecere or through the forums or email, so don’t hesitate to start writing eC code =)