[Win32k]

[reactos.git] / reactos / subsystems / win32 / win32k / include / gdiobj.h

diff --git a/reactos/subsystems/win32/win32k/include/gdiobj.h b/reactos/subsystems/win32/win32k/include/gdiobj.h
index 9882e9d..3f581bc 100644 (file)
--- a/reactos/subsystems/win32/win32k/include/gdiobj.h
+++ b/reactos/subsystems/win32/win32k/include/gdiobj.h
@@ -160,3 +160,7 @@ INT FASTCALL GreGetObjectOwner(HGDIOBJ, GDIOBJTYPE);
 
 #define GDIOBJ_GetKernelObj(Handle) \
   ((PGDI_TABLE_ENTRY)&GdiHandleTable->Entries[GDI_HANDLE_GET_INDEX(Handle)])->KernelData
+#define GDI_ENTRY_TO_INDEX(ht, e)                                              \
+  (((ULONG_PTR)(e) - (ULONG_PTR)&((ht)->Entries[0])) / sizeof(GDI_TABLE_ENTRY))
+#define GDI_HANDLE_GET_ENTRY(HandleTable, h)                                   \
+  (&(HandleTable)->Entries[GDI_HANDLE_GET_INDEX((h))])