Virtual Devices (3.1) (vdag31qh.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
VHD_Read
                                                     Up Next Previous
────────────────────────────────────────────────────────────────────────────
 
include vhd.inc
 
VxDcall VHD_Read
 
The VHD_Read service reads from the device.
 
Parameter  Description
────────────────────────────────────────────────────────────────────────────
 
EAX        Specifies a disk handle previously created using the
           VHD_Allocate_Handle service.
 
EBX        Specifies the starting sector.
 
CL         Specifies the sector count. If this parameter is zero, 256
           sectors are read.
 
CH         Specifies the drive number.
 
ESI        Points to the buffer to receive the sector data. This buffer must
           be locked.
 
Return Value
 
This service has no return value.
 
                                      ♦