VCOMM Services

NTDEV
1

Hi all,
I am trying to use the VCOMM services. Shall i have to write a vxd for
this?? or can i use those VCOMM services directly in a WDM driver?.

If i can use them in a WDM driver please tell me how they can be used.
else …if i’ll have to build a vxd…i need to be able to link them in WDM
Driver.
any suggestions on this would of great help.

Thanks in advance,
-Naveen

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2

Yes you need to write a VxD for this in Win 95/98.
VCOMM services is a kernel component in Win 95/98 for
communication ports. Just refer to sample driver in win
95/98 ddk for a Vxd sample or refer to Walter Ooney’s 95
System programming book. He gives a sample vxd
(myvxd.vxd) that lays all the framework for your vxd to
start off. You can embed the VCOMM functionality into
that. VCOMM services bear very similar names to their
counterpart in Ring3 like getcomxxx/setcommxxx etc.

hope this helps

thanks

–
Girish H.

Hi all,
I am trying to use the VCOMM services. Shall i have to write a vxd for
this?? or can i use those VCOMM services directly in a WDM driver?.

If i can use them in a WDM driver please tell me how they can be used.
else …if i’ll have to build a vxd…i need to be able to link them in WDM
Driver.
any suggestions on this would of great help.

Thanks in advance,
-Naveen

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