Implemented HasOverlappedCompleted macro.
diff --git a/include/winbase.h b/include/winbase.h
index df7dccc..cb688a7 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -1748,6 +1748,7 @@
BOOL WINAPI GlobalUnlock(HGLOBAL);
BOOL WINAPI GlobalUnWire(HGLOBAL);
LPVOID WINAPI GlobalWire(HGLOBAL);
+#define HasOverlappedCompleted(lpOverlapped) ((lpOverlapped)->Internal != STATUS_PENDING)
BOOL WINAPI InitAtomTable(DWORD);
BOOL WINAPI IsBadCodePtr(FARPROC);
BOOL WINAPI IsBadHugeReadPtr(LPCVOID,UINT);