Hello all,
I'm python guy learning C++ so be patience with me.
I am just asking if this GUI builder can be used to make Big app like Thunderbird wihtout external assistance

http://wxformbuilder.org/

May be the question is too vague, let me ask again:
Is wxForm builder able to build Any application Like VB does? Or may be this way, Is there anyone here using it in his project, and what are pros and cons?

No offence intended, but considering tools before starting the job is sometimes better way :)