_getdrive

مقالة
06/30/2010

Gets the current disk drive.

int _getdrive( void );

Valor devuelto

Returns the current (default) drive (1=A, 2=B, and so on). There is no error return.

Requisitos

Routine	Required header
_getdrive	<direct.h>

For more compatibility information, see Compatibility in the Introduction.

Ejemplo

// crt_getdrive.c
// compile with: /c
// Illustrates drive functions including:
//    _getdrive       _chdrive        _getdcwd
//

#include <stdio.h>
#include <direct.h>
#include <stdlib.h>
#include <ctype.h>

int main( void )
{
   int ch, drive, curdrive;
   static char path[_MAX_PATH];

   // Save current drive.  curdrive = _getdrive();

   printf( "Available drives are:\n" );

   // If we can switch to the drive, it exists.  for( drive = 1; drive <= 26; drive++ )
   {
      if( !_chdrive( drive ) )
      {
         printf( "%c:", drive + 'A' - 1 );
         if( _getdcwd( drive, path, _MAX_PATH ) != NULL )
            printf( " (Current directory is %s)", path );
         putchar( '\n' );
      }
   }

   // Restore original drive.  _chdrive( curdrive );
}

Available drives are:
A: (Current directory is A:\)
C: (Current directory is C:\)
E: (Current directory is E:\testdir\bin)
F: (Current directory is F:\)
G: (Current directory is G:\)