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Does anybody know how to use the ReadDirectoryChangesW function. I looked at the FWatch sample in MSDN & it didn't seem very clear. Any simpler example would be appreciated. Also when I try to call ::ReadDirectoryChangesW from within a function in a C++ class I get the following error message while compiling in VC++ 6.0 " error C2039: 'ReadDirectoryChangesW' : is not a member of '`global namespace'' ". Any help would be appreciated. Thanks.
If you look inside the "WINBASE.H" header, you will see that ReadDirectoryChangesW is defined only for Windows NT 4.0 and higher (an "#if" preprocessor definition makes sure of this). The "not a member of global namespace" error is there because the compiler could not find the prototype to the function that you are calling. Obviously, the C preprocessor skipped over the function proptotype. Therefore you are probably not running NT 4.0
Regards,
Paul McKenzie
Thanks for your feedback. But I have defined the _WIN32_WINNT macro and also included the "winbase.h" file at the top of my .cpp file as follows
#define _WIN32_WINNT 0x0400
#include "winbase.h"
#include "stdafx.h"
#include "ATLCONV.H"
Even then I get the same error message when compiling my .cpp file
"error C2039: 'ReadDirectoryChangesW' : is not a member of 'global namespace'"
. Also I have Windows NT 4.0 SP4 running on my machine. I still don't know what's happening. Thanks.