chdrive
| File Manipulation Functions |
Switches to another drive on a Windows operating system.
int chdrive( int drive);
| drive | The name of a drive. |
chdrive changes the current working drive to be drive, an integer representing the new drive. (1 = A, 2 = B, etc.)
Return Values
The chdrive function returns zero on success and (-1) for failure.
Example
The following example uses chdrive to move to all available drives on the file system. It saves the original drive in curdrive, so it can be restored later.
int ch, drive, curdrive;
static char path[1024];
// Save current drive letter so it can be restored later
curdrive = getdrive();
// If we can switch to the drive, it exists
lr_output_message ("Available drives are:");
for (drive = 1; drive <= 26; drive++)
if (!chdrive(drive))
lr_output_message ("%c: ", drive + 'A' - 1);
chdrive(curdrive); // Restore original drive
Example: Output:
Action.c(10): Available drives are:
Action.c(14): C:
Action.c(14): D:
Action.c(14): G:
Action.c(14): L:
Action.c(14): R:
Action.c(14): Z:

