funzione _findfirst in C???

[cisc]

sapreste indicarmi come funzionano le funzioni _findfirst, _findnext e _findclose?????

ringrazio anticipatamente

[cionci]

/* FFIND.C: This program uses the 32-bit _find functions to print
 * a list of all files (and their attributes) with a .C extension
 * in the current directory.
 */

#include <stdio.h>
#include <io.h>
#include <time.h>

void main( void )
{
    struct _finddata_t c_file;
    long hFile;

    /* Find first .c file in current directory */
    if( (hFile = _findfirst( "*.c", &c_file )) == -1L )
       printf( "No *.c files in current directory!\n" );
   else
   {
            printf( "Listing of .c files\n\n" );
            printf( "\nRDO HID SYS ARC  FILE         DATE %25c SIZE\n", ' ' );
            printf( "--- --- --- ---  ----         ---- %25c ----\n", ' ' );
            printf( ( c_file.attrib & _A_RDONLY ) ? " Y  " : " N  " );
            printf( ( c_file.attrib & _A_SYSTEM ) ? " Y  " : " N  " );
            printf( ( c_file.attrib & _A_HIDDEN ) ? " Y  " : " N  " );
            printf( ( c_file.attrib & _A_ARCH )   ? " Y  " : " N  " );
            printf( " %-12s %.24s  %9ld\n",
               c_file.name, ctime( &( c_file.time_write ) ), c_file.size );

            /* Find the rest of the .c files */
            while( _findnext( hFile, &c_file ) == 0 )
            {
                printf( ( c_file.attrib & _A_RDONLY ) ? " Y  " : " N  " );
                printf( ( c_file.attrib & _A_SYSTEM ) ? " Y  " : " N  " );
                printf( ( c_file.attrib & _A_HIDDEN ) ? " Y  " : " N  " );
                printf( ( c_file.attrib & _A_ARCH )   ? " Y  " : " N  " );
                printf( " %-12s %.24s  %9ld\n",
                   c_file.name, ctime( &( c_file.time_write ) ), c_file.size );
            }

       _findclose( hFile );
   }
}

[cisc]

Grazie, avevo più o meno capito il funzionamento, anche se non ho capito il ruolo della variabile long hfile, potresti spiegarmelo????

[cisc]

.... esistono funzioni del genere anche per le cartelle?????