| T O P I C R E V I E W |
| Dominik Paulkowski |
Posted - 05/03/2007 : 11:42:12 AM
Origin Version (Select Help-->About Origin): 7.5G SR6
Operating System: Windows XP Prof
Hi, there!
I want to insert header text at the beginning of a file, that was created through wks.ExportASCII.
My script is:
Worksheet wks();
string strFileNameAndPath;
wks.ExportASCII(strFileNameAndPath, WKS_EXPORT_ALL | WKS_EXPORT_LABELS | WKS_EXPORT_MISSING_AS_BLANK, '\t'); // tabulator as separator
string strHeader = "blabla\r";
stdioFile ff(strFileNameAndPath, file::modeReadWrite);
ff.SeekToBegin();
ff.WriteString(strHeader);
ff.Close(); // Close the file
This script overwrites the data in the first row or bit length of strHeader.
How can I insert the header text without overwrite data?
Ciao,
Dominik
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:-Dipl.-Phys. Dominik Paulkowski
Fraunhofer Institute for Surface Engineering and Thin Films (IST)
Braunschweig
Germany |
| 2 L A T E S T R E P L I E S (Newest First) |
| Dominik Paulkowski |
Posted - 05/04/2007 : 03:49:46 AM
Thanks, Mike! Nice idea. It works fine.
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:-Dipl.-Phys. Dominik Paulkowski
Fraunhofer Institute for Surface Engineering and Thin Films (IST)
Braunschweig
Germany |
| Mike Buess |
Posted - 05/03/2007 : 12:34:36 PM
Dominik,
I think you can only overwrite with ff.WriteString so you need to export to a temporary file, create header to data file and copy temporary file to data file...
Worksheet wks = Project.ActiveLayer(); // active wks
string strFileTemp = GetAppPath() + "temp.txt"; // temporary file
wks.ExportASCII(strFileTemp,
WKS_EXPORT_ALL |
WKS_EXPORT_LABELS |
WKS_EXPORT_MISSING_AS_BLANK, '\t'); // tabulator as separator
string strFileNameAndPath = GetAppPath() + "File.dat"; // data file
stdioFile f1(strFileNameAndPath, file::modeReadWrite | file::modeCreate);
stdioFile f2(strFileTemp, file::modeRead);
string strHeader = "blabla\n"; // '\n' is new line
string strLine;
f1.SeekToBegin();
f1.WriteString(strHeader); // write header to file.dat
// copy each line from temp.txt to file.dat
while ( f2.ReadString(strLine) ) f1.WriteString(strLine);
f1.Close(); // close data file
f2.Close(); // close temp file
DeleteFile(strFileTemp); // delete temp file
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 05/03/2007 12:37:54 PM |
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