Delete objects after use in EnumEnhMetaFile.
Make PlayEnhMetaFile call EnumEnhMetaFile.
Move EnumEnhMetaFile prototype to wingdi.h.

diff --git a/include/wingdi.h b/include/wingdi.h
index 569e63c..2d42ac4 100644
--- a/include/wingdi.h
+++ b/include/wingdi.h
@@ -3139,6 +3139,7 @@
 BOOL      WINAPI Ellipse(HDC,INT,INT,INT,INT);
 INT       WINAPI EndDoc(HDC);
 BOOL      WINAPI EndPath(HDC);
+BOOL      WINAPI EnumEnhMetaFile(HDC,HENHMETAFILE,ENHMFENUMPROC,LPVOID,const RECT*);
 INT       WINAPI EnumFontFamiliesA(HDC,LPCSTR,FONTENUMPROCA,LPARAM);
 INT       WINAPI EnumFontFamiliesW(HDC,LPCWSTR,FONTENUMPROCW,LPARAM);
 #define     EnumFontFamilies WINELIB_NAME_AW(EnumFontFamilies)