Gets the current disk drive.
int _getdrive( void );
| Routine | Required Header | Compatibility |
| _getdrive | <direct.h> | Win 95, Win NT |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
| LIBC.LIB | Single thread static library, retail version |
| LIBCMT.LIB | Multithread static library, retail version |
| MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
_getdrive returns the current (default) drive (1=A, 2=B, and so on). There is no error return.
Example
/* GETDRIVE.C illustrates drive functions including:
* _getdrive _chdrive _getdcwd
*/
#include <stdio.h>
#include <conio.h>
#include <direct.h>
#include <stdlib.h>
#include <ctype.h>
void 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 );
while( 1 )
{
printf( "\nType drive letter to check or ESC to quit: " );
ch = _getch();
if( ch == 27 )
break;
if( isalpha( ch ) )
_putch( ch );
if( _getdcwd( toupper( ch ) - 'A' + 1, path, _MAX_PATH ) != NULL )
printf( "\nCurrent directory on that drive is %s\n", path );
}
/* Restore original drive.*/
_chdrive( curdrive );
printf( "\n" );
}
Output
Available drives are:
A: B: C: L: M: O: U: V:
Type drive letter to check or ESC to quit: c
Current directory on that drive is C:\CODE
Type drive letter to check or ESC to quit: m
Current directory on that drive is M:\
Type drive letter to check or ESC to quit: