Hello,

Now that the topic is not as hot as it used to be, can one of the gurus out
there tell me why this fragment of code, almost copied out of the docs,
fails with error code... 87 ? 

_ _ _ O / _ _ C_U_T_ H_E_R_E_ _ _ _
      O \

#define INCL_DOSDEVICES   /* Device values */
#include 
#include 
#include 

#define DSK_LAYOUTNONSTANDARD  0

VOID main (void)

{
USHORT hDisk;
BYTE abBuf[512];
USHORT j, i, m;
APIRET rc;                         

TRACKLAYOUT trckl =
{
   DSK_LAYOUTNONSTANDARD,                /* Might not start with sector 1*/
   0,                                    /* Head 0 */
   0,                                    /* Cylinder 0 */
   0,                                    /* First Sector in Track Table */
   1,                                    /* One Sector in Track Table */
   512                                   /* 512 Bytes Sector */
};

rc = DosPhysicalDisk(
INFO_GETIOCTLHANDLE,                     /* Get the handle */
(PBYTE) &hDisk,                          /* in here */
sizeof(USHORT),
"1:",                                    /* first partitionable
hard disk */
3);                                      /* 1:sz */

rc = DosDevIOCtl(hDisk,
IOCTL_PHYSICALDISK,
PDSK_READPHYSTRACK,
&trckl,
sizeof(trckl),
0,
abBuf,
sizeof(abBuf),
0);

if (rc==0) {
    printf("\n\nDosDevIOCtl executed successfully.\n\n");
} else {
    printf("\n\nDosDevIOCtl failed with ErrorCode: %d\n\n", rc);
}; /* endif */

DosPhysicalDisk(
INFO_FREEIOCTLHANDLE,
0,
0,
&hDisk,
sizeof(USHORT));
}
_ _ _ O / _ _ C_U_T_ H_E_R_E_ _ _ _
      O \


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