Replace some 16-bit calls by their 32-bit equivalents.

diff --git a/objects/dc.c b/objects/dc.c
index f5709f8..22f5084 100644
--- a/objects/dc.c
+++ b/objects/dc.c
@@ -392,7 +392,7 @@
     }
     else
     {
-        if (dc->hClipRgn) DeleteObject16( dc->hClipRgn );
+        if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
         dc->hClipRgn = 0;
     }
     CLIPPING_UpdateGCRegion( dc );