internal static DocHelper.IFilter LoadAndInitIFilter(string fileName, string extension)
{
DocHelper.IFilter filter = LoadIFilter(extension);
if (filter == null)
{
return(null);
}
IPersistFile persistFile = (filter as IPersistFile);
if (persistFile != null)
{
persistFile.Load(fileName, 0);
DocHelper.IFILTER_FLAGS flags;
DocHelper.IFILTER_INIT iflags =
DocHelper.IFILTER_INIT.CANON_HYPHENS |
DocHelper.IFILTER_INIT.CANON_PARAGRAPHS |
DocHelper.IFILTER_INIT.CANON_SPACES |
DocHelper.IFILTER_INIT.APPLY_INDEX_ATTRIBUTES |
DocHelper.IFILTER_INIT.HARD_LINE_BREAKS |
DocHelper.IFILTER_INIT.FILTER_OWNED_VALUE_OK;
if (filter.Init(iflags, 0, IntPtr.Zero, out flags) == DocHelper.IFilterReturnCode.S_OK)
{
return(filter);
}
}
//If we failed to retreive an IPersistFile interface or to initialize
//the filter, we release it and return null.
Marshal.ReleaseComObject(filter);
return(null);
}
public FilterReader(string fileName)
{
_filter = FilterLoader.LoadAndInitIFilter(fileName);
if (_filter == null)
{
throw new ArgumentException("no filter defined for " + fileName);
}
}
public FilterReader(string fileName)
{
_filter = FilterLoader.LoadAndInitIFilter(fileName);
if (_filter == null)
throw new ArgumentException("no filter defined for " + fileName);
}
