Fixed compiler warnings in win32 API calls (thanks, Dennis!).

CHANGELOG

@@ -4,6 +4,7 @@
 
 -- stuff in the stable-1.0 branch, backported from 2.0.0 dev branch, etc ---
 
+03082008 - Fixed compiler warnings in Windows platform layer (thanks, Dennis!).
 02202008 - Various archiver swap and compare functions now check if they are
            swapping/comparing an item against itself, for efficiency and
            to prevent overlapping memcpy() calls.

platform/win32.c

@@ -850,8 +850,8 @@ PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
 int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
 {
     HANDLE FileHandle = ((win32file *) opaque)->handle;
-    DWORD HighOrderPos;
-    DWORD *pHighOrderPos;
+    LONG HighOrderPos;
+    PLONG pHighOrderPos;
     DWORD rc;
 
     /* Get the high order 32-bits of the position */
@@ -888,7 +888,7 @@ int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
 PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
 {
     HANDLE FileHandle = ((win32file *) opaque)->handle;
-    DWORD HighPos = 0;
+    LONG HighPos = 0;
     DWORD LowPos;
     PHYSFS_sint64 retval;