syntax error : missing ';' before identifier 'PVOID64' when compiling winnt.h

Question

I\'ve recently got the source-code on a application. When im trying to build the solution, I get an error in all parts where winnt.h is included. The error code

Answer 1

You need to include windows.h rather than winnt.h. When you include windows.h it will, in turn, include winnt.h. You need to do it this way for the necessary macros to be in place that are needed to compile winnt.h.

In this case, POINTER_64 is defined in BaseTsd.h like this:

#define POINTER_64 __ptr64

But if you include winnt.h before including windows.h then POINTER_64 is not defined.