On Monday September 25 1995 at 02:52, Patrick Haller wrote to All / Peter
Fitzsimmons:

 PH> I'd just like to implement a tool for "CDROM /EJECT" or "CDROM
 PH> /PLAYAUDIO", etc.

Here's a program that will eject, lock and unlock a CD-ROM (or other modern
removable media) disk:

===CUT===HERE===MEDIA.C
#define INCL_BASE
#define INCL_DOSPROCESS
#define INCL_DOSDEVIOCTL
#define INCL_NOPMAPI
#define INCL_DOSMISC
#include 
#include 
#include 
#include 

int main (int argc, char *argv[])
{
 struct {
  UCHAR Command;
  UCHAR Drive;
} C8F40;

 APIRET rc;

 printf("Media V1.0.  Public domain");

 if (argc != 3)
 {
  printf ("The parameter is incorrect.\n\nSyntax:\n\n%s (drive)
{UNLOCK||LOCK||EJECT}\n", argv[0]);

  return(1);
 }

 C8F40.Drive = toupper(argv[1][0]) - 'A';
 C8F40.Command = 0xFF;

 if (stricmp(argv[2], "UNLOCK") == 0) C8F40.Command = 0;
 if (stricmp(argv[2], "LOCK") == 0)   C8F40.Command = 1;
 if (stricmp(argv[2], "EJECT") == 0)  C8F40.Command = 2;

 if (C8F40.Command == 0xFF)
 {
  printf ("Unknown option '%s'.\n", argv[2]);
  return(1);
 }

 rc = DosDevIOCtl(-1, 8, 0x40, &C8F40, sizeof(C8F40), 0, NULL, 0, 0);
 if (rc != 0)
 {
  char buffer[1024];
  ULONG msglength;
     rc = DosGetMessage(0, 0, buffer, 1024, rc, "OSO001.MSG",
&msglength);
     buffer[msglength] = '\0';

  printf (buffer);
  return(2);
 }

 switch (C8F40.Command)
 {
  case 0:
   printf("Drive %s unlocked.", argv[1]);
   break;

  case 1:
   printf("Drive %s locked.", argv[1]);
   break;

  case 2:
   printf("Media in drive %s ejected.", argv[1]);
   break;
 }
 printf("\n");

 return(0);
}
===CUT===HERE===

--- GoldED/2 2.42.G0615