Thread: Showing the *.* files

I'm writing a win32 console program and I must have a function which displays the *.lng files. Now, when I was writing for DOS there were a ffblk structure, function findfirst and findnext in "dir.h" library for this purpose, but now I'm writing in Windows and I don't know what function am I supposed to use.

Please help.

I think the windows versions work about the same and are named similarly, ie:

FindFirst(), et al....

But the DOS ones work fine too in Windows.

DOS ones are not working. At least ffblk structure. Is there any similar structure in windows?

Not that I know of...

Does it work in DOS mode for you?

If not, post your code.

your going to hate me for this
(it works on Linux but it might work on Win32 or DOS)

Code:

#include <stdio.h>
int main()
{
	system("dir *.exe");
	printf("\n");
	return 0;
}
// replace *.exe with *.extension or whatever you want, it still works.

This code was compiled with Turbo C++ 3.0 and it is working. But if I compile this with VC++ 6.0 it is not working. The error that is reported is that the compiler can't find the "dir.h" library.

Code:

# include <dir.h>

void ShowLNGFiles() 
{
   struct ffblk File01;
   int Search = 0;

   Search = findfirst ("*.lng", &File01, 0);
   while (!Search)
   {
      printf("\n%s", File01.ff_name);
      Search = findnext (&File01);
   }
}

Now I just need the replacement for this function, so that will work in win32 console program (compiled with VC++ 6.0).

EDIT:
Lynux: Thanks, but no thanks. I'm not looking for that kind of solution.

its in io.h in MSVC

Thanks no-one. Now I wrote this and I can't get it working.

Code:

# include <io.h>

void ShowLNGFiles() 
{
   struct _finddata_t File01;
   long int Search, i=0;

   Search= _findfirst("*.*", &File01);
   while (!Search)
   {
       i++;
       printf("%s", File01.name);
       Search = _findnext(0, &File01);
   }
   if (i == 0)
   {
       printf("\nNot working.");
   }
}

ok other than not including stdio.h the only problem i see right of is you need to change your find string to something with a directory!

Search= _findfirst("C:\\*.*", &File01);

Try this:

void ShowLNGFiles()
{
DIR d = opendir("c:\\");

struct _finddata_t File01;
long int Search = 1, i=0;
long int Handle;

Handle = _findfirst("*.*", &File01);

while (Search)
{
i++;
printf("%s", File01.name);
Search = _findnext(Handle, &File01);
}
if (i == 0)
{
printf("\nNot working.");
}

closedir( d );

/*...might need to use findclose() too, look at your documentation, maybe in io.h, maybe dirent.h...*/
}

Let me know if that works...

By the way, Salem posted an excellent example some time back. Do a search on the boards to find it...


...Here it is. One thing though, it needed a slight revision...

Code:

//...Author: Salem A.K.A. "stee"

#include <stdio.h>
#include <dir.h>
#include <string.h>

#define ALL_ATTS ( \
  FA_DIREC | \
  FA_ARCH )

void walker ( char *path ) {
  struct ffblk finder;
  unsigned int res;


 chdir(path);  //...added this so you don't crash...

  for ( res = findfirst ( "*.*", &finder, ALL_ATTS );
        res == 0;
        res = findnext( &finder ) ) {
    if ( strcmp(finder.ff_name, ".") == 0 ) continue;  // current dir
    if ( strcmp(finder.ff_name, "..") == 0 ) continue; // parent dir

    // if its a directory, examine it
    // else compare the filename with the one we're looking for
    if ( finder.ff_attrib & FA_DIREC ) {
      char newpath[MAXPATH];
      strcpy( newpath, path );
      strcat( newpath, "\\" );
      strcat( newpath, finder.ff_name);
      chdir( finder.ff_name );
      walker( newpath );
      chdir( ".." );
    } else {
      if ( strcmp( finder.ff_name, "words.txt" ) == 0 ) {
        printf( "Found!!!" );
      }
    }
  }
}

int main ( ) {
  char *root = "\\";
  chdir( root );
  walker( root );
  return 0;
}

To make it fit your needs, just add another parameter to the function...Tho now that I think about it, this looks a little incomplete...still, try it.

This example is for DOS based program and not for the win32 console program. Anyway I fixed the code and it is working now.
Here's the code:

Code:

void ShowLNGFiles ()
{
    struct _finddata_t File;
    long int Search= 0, Handle = 0;
    int i = 0;
    BOOL Loop = TRUE;
	
    Handle = _findfirst("C:\\*.lng", &File); // returns -1 if there is no file, otherwise returns 6488923
    if (Handle != -1)
    {
       while (Loop)
       {
           printf("%s", File.name);
           Search = _findnext(Handle, &File); // returns 0 if the file is found, otherwise returns -1
           i++;
           if (Search == -1) Loop = FALSE; // if there is no files more to be found then exit the while loop
       }
    }
    else
    {
       printf ("File(s) with extension \"*.lng\" can not be found.");
    }
}

But I have one more question. When I was programming in Turbo C++ 3.0 (for DOS) and if I want to define my current directory I had to write this ".\myprog\". My problem is that this is not working with VC++ 6.0. How to define my current directory?

This may work:

char buff[500];

getcwd(buff, 500);

You miss understood.

Code:

Handle = _findfirst("C:\\*.lng", &File);
// how to rewrite "C:\\*.lng" into something independent ??
// something like this "./myprog/*.lng" -> this works only under Turbo C++ 3.0 compiler.

EDIT:

Ok, I fixed it. It is working now.

Thanks guys for you answers.