Category: <b>network</b>
<br>Flags: callout or callback (usually hooked rather than called), Undocumented function<p>
<pre><b>INT 2F - NETWORK REDIRECTOR (DOS 3.x only) - LOCK REGION OF FILE</b>

	AX = 110Ah
	BX = file handle
	CX:DX = starting offset
	SI = high word of size
	STACK: WORD low word of size
	ES:DI -&gt; SFT
	    SFT DPB field -&gt; DPB of drive containing file
	SS = DOS DS
Return: CF set on error
	   AL = DOS error code (see <a href=../../it/80/16.html>#01680</a> at INT 21/AH=59h/BX=0000h)
	STACK unchanged
Notes:	this function is called by the DOS 3.10-3.31 kernel
	the redirector is expected to resolve lock conflicts
SeeAlso: AX=110Bh,INT 21/AH=5Ch
</pre>