What is the bit size of long on 64-bit Windows?

Question

Not to long ago, someone told me that long are not 64 bits on 64 bit machines and I should always use int. This did not make sense to me. I have se

Answer 1

Microsoft has also defined UINT_PTR and INT_PTR for integers that are the same size as a pointer.

Here is a list of Microsoft specific types - it's part of their driver reference, but I believe it's valid for general programming as well.