Added a declaration for GetEnhMetaFileDescription.

diff --git a/include/wingdi.h b/include/wingdi.h
index 2577672..30b442d 100644
--- a/include/wingdi.h
+++ b/include/wingdi.h
@@ -3159,6 +3159,9 @@
 HENHMETAFILE WINAPI GetEnhMetaFileW(LPCWSTR);
 #define     GetEnhMetaFile WINELIB_NAME_AW(GetEnhMetaFile)
 UINT      WINAPI GetEnhMetaFileBits(HENHMETAFILE,UINT,LPBYTE);
+UINT        WINAPI GetEnhMetaFileDescriptionA(HENHMETAFILE,UINT,LPSTR);
+UINT        WINAPI GetEnhMetaFileDescriptionW(HENHMETAFILE,UINT,LPWSTR);
+#define     GetEnhMetaFileDescription WINELIB_NAME_AW(GetEnhMetaFileDescription)
 UINT      WINAPI GetEnhMetaFileHeader(HENHMETAFILE,UINT,LPENHMETAHEADER);
 UINT      WINAPI GetEnhMetaFilePaletteEntries(HENHMETAFILE,UINT,LPPALETTEENTRY);
 DWORD     WINAPI GetFontData(HDC,DWORD,DWORD,LPVOID,DWORD);