Creates a handle that identifies the enhanced-format metafile stored in the specified file
_WinAPI_GetEnhMetaFile ( $sFilePath )
|$sFilePath||The name of an enhanced metafile (.emf).|
|Success:||Handle to the enhanced metafile.|
When the application no longer needs an enhanced-metafile handle, it should delete the handle by calling the
Search GetEnhMetaFile in MSDN Library.