DosQCurDisk

This call determines the current default drive for the requesting process.

Syntax
DosQCurDisk (DriveNumber, LogicalDriveMap)

Parameters

 * DriveNumber (PUSHORT) - output : Address of the number of the default drive, for example:
 * 1 A
 * 2 B ...


 * LogicalDriveMap (PULONG) - output : Address of the bit map (stored in the low-order portion of the 32-bit, doubleword area) where the system returns the mapping of the logical drives. Logical Drives A to Z have a one-to-one mapping with the bit positions 0 to 25 of the map; for example, bit 0 is drive A, bit 1 is drive B, and so forth. The settings of these bits indicate which drives exist:
 * 0 - The logical drive does not exist.
 * 1 - The logical drive exists.

Return Code

 * rc (USHORT) - return:Return code description is:
 * 0 NO_ERROR

C

 * 1) define INCL_DOSFILEMGR

USHORT rc = DosQCurDisk(DriveNumber, LogicalDriveMap); PUSHORT DriveNumber;    /* Default drive number (returned) */ PULONG LogicalDriveMap; /* Drive map area (returned) */

USHORT rc;              /* return code */ 

MASM
 EXTRN DosQCurDisk:FAR INCL_DOSFILEMGR    EQU 1

PUSH@ WORD    DriveNumber     ;Default drive number (returned) PUSH@ DWORD   LogicalDriveMap ;Drive map area (returned) CALL  DosQCurDisk

Returns WORD 