Elo TouchSystems 1525L manual MagTek Device Drivers for Windows, Ctrl-Z - emergency exit, if ch

MagTek Device Drivers for Windows

}
#else
gets(str);
strcat(str, "\n");
ch = str[0];
#endif
switch (ch)
{
case 0x1a:	// <Ctrl-Z> - emergency exit
printf("\n---Exit---\n");//@@
quit = TRUE;
break;
default:
if (ch < 0x100)
{
BOOL	rs;
DWORD	ret_len;

#ifdef SINGLE_CHARS

rs = WriteFile(drv_h, &ch, 1, &ret_len, &ov_w); #else

rs = WriteFile(drv_h, str, strlen(str), &ret_len, &ov_w); #endif

if (!rs)

{

ws = GetLastError ();

if ( ws != ERROR_IO_PENDING)

printf("DeviceIOControl (Write) Error : %i (0x%x)\n", ws, ws );

}

rs = GetOverlappedResult (

drv_h,	// handle
&ov_w,	// address of overlapped structure
&ret_len,	// address of actual bytes count
TRUE	// wait flag
);
if (!rs)
{

ws = GetLastError ();

printf("Write Error : %i (0x%x)\n", ws, ws );

}

}

else

{

}

break;

} /* switch (ch) */

//give output thread chance to catch 'quit' character from driver

//@@ there should be a better way to do this

if (ch == 0x1b) Sleep(200);

}

}

#define BUFSZ 128

void output_thread (void *vp)

{

BOOLrs;

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