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FindFile class for Windows projects

By , 12 Jan 2004
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Introduction

Searching for files and directories is something we, as programmers, have to do in many projects. I have always thought that there must be something someone out there wrote to make my life easier in this regard. I have done a lot of looking around but most of what I've found has had a dependency on a specific IDE, like VS and MFC for example. So, I decided to write my own, make it IDE independent and add some useful features. FindFile, is the result of my efforts.

Using the code

The code that allows searching consists of the files FindFile.h, FindFile.cpp, wildcard.h, and wildcard.cpp. To use the code, you need to initialize a FindFileOptions_t structure and pass it by reference to the constructor of FindFile. Here is a snippet of the structure, listing options used by FindFile:

struct FindFileOptions_t
{
    bool recursive;         // Whether to look inside subdirectories
    bool returnFolders;     // Return folder names as results too

    bool *terminateValue;   // Value to check to see whether search 
                            // should be terminated

    string location;        // Where to search for files

    string filter;          // Filter for files to be included

    string excludeFile;     // Exclude filter for files
    string excludeDir;      // Exclude filter for directories
};

Some of these options require explaining. The returnFolders option specifies whether FindFile should return both files and directories in its return results. The terminateValue option is a pointer to some integer in memory whose value will be read to determine whether the search should be aborted. This is useful to have when incorporating this class in a multi-threaded environment (as is most likely the case). If the value in the integer pointed to by terminateValue is anything but 0 the search will abort. If you do not want to use this feature, just set terminateValue to NULL.

Here is an example of a program that uses FindFile:

    FindFileOptions_t opts;
    opts.excludeDir = "CSE*;*53*";
    opts.excludeFile = "*.pdf;*.doc";
    opts.filter = "*";
    opts.location = "C:\\School";
    opts.recursive = true;
    opts.returnFolders = false;
    opts.terminateValue = NULL;

    FindFile find(opts);
    find.search();

    int nfiles = (int) find.filelist.size();
    __int64 size = find.listsize;

    // Print out the list of files found
    for (int i = 0; i < (int) find.filelist.size(); i++)
    {
        string fullname = FindFile::combinePath(find.filelist[i].path, 
                       find.filelist[i].fileinfo.cFileName);
        printf("%s\n", fullname.c_str());
    }

    printf("Found: %d files (%ld bytes)", nfiles, size);

This example will recursively search for all files in directory "C:\School" which do not have a PDF or DOC extension and will not look for files in subdirectories that begin with "CSE" or contain "53".

History

  • December 27, 2003
    • Updated source code to reflect bug fix on searching of files in root drives.
  • November 29, 2002
    • All references to the GNU public license have been removed from the code. You are free to use this code any way you see fit as long as the original copyright statement remains in all versions you modify/redistribute.
  • November 28, 2002
    • This is the first version of the code but has been used in many projects of mine for many years. If you find a bug, though, or feel some parts can be done better, please let me know.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

Louka Dlagnekov

United States United States
No Biography provided

Comments and Discussions

 
GeneralAdd Sort features Pinmemberekey1-Jul-09 0:47 
Generalanother thank you !! Pinmembermasotta9-Dec-08 5:45 
GeneralTime to place a "Thank you" Pinmemberubentz21-Dec-06 5:28 
GeneralCase sensitivity in filter [modified] Pinmembergugy113-Jun-06 23:09 
GeneralVisual C++ 2005 Express Compiler Error Pinmembergary_johnson_538-Mar-06 6:06 
Generalno unicode PinmemberJan VO13-Nov-05 23:13 
Generalbug in wildcard Pinmemberheroboy5-Sep-05 18:02 
GeneralSource code link failure PinmemberEckman16-Aug-05 1:27 
Generallink error Pinmemberdensitet3-Mar-05 2:33 
GeneralRe: link error PinmemberLouka Dlagnekov3-Mar-05 7:12 
GeneralRe: link error Pinmemberdensitet4-Mar-05 4:43 
Generallinking error in msvc6 with stlport 4.6.2 Pinmemberbektek15-Sep-04 16:18 
GeneralRe: linking error in msvc6 with stlport 4.6.2 PinmemberLouka Dlagnekov15-Sep-04 17:12 
GeneralRe: linking error in msvc6 with stlport 4.6.2 Pinmemberbektek15-Sep-04 19:43 
the web page was relly helpful..
now it works well..
Thanks your info..
 
something _DEBUG flag fix the problem..

GeneralSearch differect hard drives with one location... PinmemberCyberJay8226-Jul-04 8:27 
GeneralRe: Search differect hard drives with one location... PinmemberLouka Dlagnekov26-Jul-04 15:29 
GeneralVS and MFC Solutions: PinmemberAlan Phang SP7-Mar-04 19:26 
GeneralRe: VS and MFC Solutions: PinmemberLouka Dlagnekov7-Mar-04 19:30 
GeneralHelp NEEDED PLEASE!! PinmemberZero_consequences13-Jan-04 20:54 
GeneralRe: Help NEEDED PLEASE!! PinmemberLouka Dlagnekov18-Jan-04 15:53 
GeneralGerman Umlaute (and probably other special characters) PinmemberToK783-Jan-04 5:38 
Generaldu* matches data.txt PinmemberL e P o25-Nov-03 2:27 
GeneralRe: du* matches data.txt PinmemberDirkS18-Jan-04 19:47 
GeneralFantastic! PinmemberJoe McConnell19-Nov-03 6:55 
Generalfound a possible error...please help Pinmemberagd01126-Jun-03 11:28 

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