file

Name

file

Remark

The Origin C file class provides read/write access to binary files using unbuffered io (immediate disk access) similar to the MFC CFile class. See also the stdioFile class for buffered stream io to text files.

Hierarchy

• file
  • stdioFile

Examples

EX1

//generate a binary file with 4 integer
void file_ex1()
{
    char szTemp[MAXFULLPATH];
    GetTempPath(MAXFULLPATH, szTemp); // Get temp folder path.
    string strFile = szTemp + "\\test.Dat";
    file ff(strFile, file::modeCreate | file::modeWrite); // Create a new write only file.
    int bb[4] = {1, 2, 3, 4};
    int iSize = sizeof(bb);
    ff.Write(bb,iSize);
    ff.Close();
}

EX2

//generate a binary file of unsigned short in the form of cell=r + c
//you can read this type of file into Origin with the impbin2d X-Function
void file_ex2(int nCols = 128, int nRows = 10)
{
    string strFile = GetAppPath() + "test" + nCols + "x" + nRows + ".img";
    file ff;
    if(ff.Open(strFile, file::modeCreate | file::modeWrite))
    {
        for(int ii = 0; ii < nRows; ii++)
        {
            for(int jj = 0; jj < nCols; jj++)
            {
                unsigned short us = ii + jj;
                ff.Write(&us, 2);
            }
        }
        ff.Close();
        printf("file successfully created:\n%s\n", strFile);
    }
    else
        printf("failed to create file:%s\n", strFile);
}

header to Include

origin.h

Reference

Members