Re: Bugs in LONG_PTR usage in VS2005 header files

Just in case you encounter these, they appear to be actual bugs. The warnings should not
be issued. I'm using VS2005/SP1/Vista and compiling for Win32.
==================================================================================================================
FARPROC func;

line 43: ::SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)func);

warning C4244: 'argument' : conversion from 'LONG_PTR' to 'LONG', possible loss of data
i:\XXX\hook\hook.cpp 43

static LRESULT CALLBACK SubclassHandler(HWND, UINT, WPARAM, LPARAM);

line 289 ::SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)SubclassHandler);

warning C4244: 'argument' : conversion from 'LONG_PTR' to 'LONG', possible loss of data
i:\XXX\hook\hook.cpp 289

Given the definitions are
WINUSERAPI LONG_PTR WINAPI SetWindowLongPtrA(__in HWND hWnd, __in int nIndex, __in
LONG_PTR dwNewLong);
WINUSERAPI LONG_PTR WINAPI SetWindowLongPtrW(__in HWND hWnd, __in int nIndex, __in
LONG_PTR dwNewLong);

Do you see a conversion from LONG_PTR to LONG? I sure don't.
===================================================================================================================

Then there's

line 288 ::SetProp(hWnd, WNDPROC_PROP, (HANDLE)::GetWindowLongPtr(hWnd,
GWLP_WNDPROC));

warning C4312: 'type cast' : conversion from 'LONG' to 'HANDLE' of greater size
i:\XXX\hook\hook.cpp 288

WINUSERAPI LONG_PTR WINAPI GetWindowLongPtrA(__in HWND hWnd, __in int nIndex);
WINUSERAPI LONG_PTR WINAPI GetWindowLongPtrW(__in HWND hWnd, __in int nIndex);

Note also that this function returns a LONG_PTR, so casting a LONG_PTR to a HANDLE does
not change the type width...
===================================================================================================================

Also, does anyone have a clue as to why [SG]etWindowLongPtr has -A and -W versions, given
there is no textual fields in the GetWindowLongPtr area?
                            joe