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====== DosQCurDisk ======

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

===== Syntax =====


<code c>
DosQCurDisk (DriveNumber, LogicalDriveMap)
</code>

===== Parameters =====


  * DriveNumber ([[PUSHORT]]) - output : Address of the number of the default drive, for example:

  Value  Definition'
  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:

  Value  Definition
  0       The logical drive does not exist.
  1       The logical drive exists.

===== Return Code =====

rc ([[USHORT]]) - return

Return code description is:

  * 0 NO_ERROR

===== Bindings =====

==== C Binding ====

<code c>
#define INCL_DOSFILEMGR

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

USHORT  rc;              /* return code */
</code>

==== MASM Binding ====

<code asm>
EXTRN  DosQCurDisk:FAR
INCL_DOSFILEMGR     EQU 1

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

Returns WORD

===== Note =====

Text based on http://www.edm2.com/index.php/DosQCurDisk

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