admin@xxxxxxxxxxxxxxxxx wrote: >Thanks for the reply. > >Actually >I want to make it a virtual audio driver. It don't need a specific hardware. >It uses the sound >card to play or record. But it acts like a true audio device there. So apps >that use it can work >normally, but I can have control on the data stream in this driver now. > >I have looked at MSVAD driver in WINXP DDK. It writes the data to disk. I >wonder how to send the >data to another true sourd device at the same time. > > I don't think you really want a driver. You want a filter. You can do all of this in user mode by writing a DirectShow filter. -- - Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc. ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/