/// <summary>
/// get emf stream
/// </summary>
/// <param name="spoolFileStream"></param>
/// <returns></returns>
public List <Stream> GetEmfStreams(Stream spoolFileStream)
{
List <Stream> emfStreams = new List <Stream>();
BinaryReader spoolBinaryReader = new BinaryReader(spoolFileStream, System.Text.Encoding.Unicode);
Int32 iFoo = spoolBinaryReader.ReadInt32();
while (iFoo != (int)SpoolerRecordTypes.SRT_DEVMODE && iFoo != (int)SpoolerRecordTypes.SRT_PAGE && iFoo != (int)SpoolerRecordTypes.SRT_EXT_PAGE)
{
iFoo = spoolBinaryReader.ReadInt32();
}
spoolBinaryReader.BaseStream.Seek(-4, SeekOrigin.Current);
//Read the spooler records and count the total pages
EMFMetaRecordHeader recNext = NextHeader(spoolBinaryReader);
while (recNext.iType != SpoolerRecordTypes.SRT_EOF)
{
if (recNext.iType == SpoolerRecordTypes.SRT_PAGE)
{
_Pages += 1;
}
var emfStream = SkipAHeader(recNext, spoolBinaryReader);
if (emfStream != null)
{
emfStreams.Add(emfStream);
}
recNext = NextHeader(spoolBinaryReader);
}
spoolBinaryReader.Close();
spoolFileStream.Close();
return(emfStreams);
}
public int GetTruePageCount(string spoolFilename)
{
string ShadowFilename;
ShadowFilename = spoolFilename;
// Open a binary reader for the spool file;
FileStream SpoolFileStream = new System.IO.FileStream(spoolFilename, FileMode.Open, FileAccess.Read);
BinaryReader SpoolBinaryReader = new BinaryReader(SpoolFileStream, System.Text.Encoding.Unicode);
Int32 iFoo;
iFoo = SpoolBinaryReader.ReadInt32();
while (iFoo != (int)SpoolerRecordTypes.SRT_DEVMODE && iFoo != (int)SpoolerRecordTypes.SRT_PAGE && iFoo != (int)SpoolerRecordTypes.SRT_EXT_PAGE)
{
iFoo = SpoolBinaryReader.ReadInt32();
}
SpoolBinaryReader.BaseStream.Seek(-4, SeekOrigin.Current);
//Read the spooler records and count the total pages
EMFMetaRecordHeader recNext = NextHeader(SpoolBinaryReader);
while (recNext.iType != SpoolerRecordTypes.SRT_EOF)
{
if (recNext.iType == SpoolerRecordTypes.SRT_PAGE)
{
_Pages += 1;
}
SkipAHeader(recNext, SpoolBinaryReader);
recNext = NextHeader(SpoolBinaryReader);
}
SpoolBinaryReader.Close();
SpoolFileStream.Close();
return(_Pages * _Copies);
}
public Stream SkipAHeader(EMFMetaRecordHeader header, BinaryReader spoolBinaryReader)
{
Stream emfStream = null;
if (header.nSize <= 0)
{
header.nSize = 8;
}
if (header.iType == SpoolerRecordTypes.SRT_JOB_INFO)
{
byte[] JobInfo;
JobInfo = spoolBinaryReader.ReadBytes(header.nSize);
spoolBinaryReader.BaseStream.Seek(header.Seek + header.nSize, SeekOrigin.Begin);
}
else if (header.iType == SpoolerRecordTypes.SRT_EOF)
{
// End of file reached..do nothing
}
else if (header.iType == SpoolerRecordTypes.SRT_DEVMODE)
{
// Spool job DEVMODE
DevMode _dmThis = new DevMode(spoolBinaryReader);
_Copies = _dmThis.Copies;
spoolBinaryReader.BaseStream.Seek(header.Seek + 8 + header.nSize, SeekOrigin.Begin);
}
else if (header.iType == SpoolerRecordTypes.SRT_PAGE || header.iType == SpoolerRecordTypes.SRT_EXT_PAGE)
{
emfStream = GetEMFStream(spoolBinaryReader);
}
else if (header.iType == SpoolerRecordTypes.SRT_EOPAGE1 || header.iType == SpoolerRecordTypes.SRT_EOPAGE2)
{
// int plus long
if (header.nSize == 0x8)
{
spoolBinaryReader.BaseStream.Seek(header.Seek + header.nSize + 8, SeekOrigin.Begin);
}
}
else if (header.iType == SpoolerRecordTypes.SRT_UNKNOWN)
{
spoolBinaryReader.BaseStream.Seek(header.Seek + 4, SeekOrigin.Begin);
}
else
{
spoolBinaryReader.BaseStream.Seek(header.Seek + header.nSize, SeekOrigin.Begin);
}
return(emfStream);
}
public EMFMetaRecordHeader NextHeader(BinaryReader spoolBinaryReader)
{
EMFMetaRecordHeader recRet = new EMFMetaRecordHeader();
// get the record type
recRet.Seek = (int)spoolBinaryReader.BaseStream.Position;
try
{
recRet.iType = (SpoolerRecordTypes)spoolBinaryReader.ReadInt32();
}
catch (EndOfStreamException e)
{
recRet.iType = SpoolerRecordTypes.SRT_EOF;
return(new EMFMetaRecordHeader());
}
// Get the record size
recRet.nSize = spoolBinaryReader.ReadInt32();
return(recRet);
}
