Disparity Map Using C++

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Earlier I tried to get the disparity map from two stereo images using Java. had posted a question in the same forum. But since there is no answers to it for about two weeks, now I have decided to get the same using C++.

I have following setup on my machine.

1) minGW

2) Eclipse CDT

3) opencv 2.4.8

and now trying to get disparity map using C++.

I understand that basically I have to perform

1) Camera calibration using chess board

2) get disparity map using say block matching

Can any one please point me towards any link where these are explained step by step.