Did you remember to pass in a pointer to a KSP_PIN structure as the
pProperty parameter (not just a KSPROPERTY) of the call to
IKsControl::KsProperty, and to set the pin index to the pin you want to
querry (don't forget to make ulPropertyLength equal to sizeof(KSP_PIN) ?

Also remember that you need to do this on the IKsControl of the filter, not
the pin...

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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~
Arnaud Glatron

ZMagic Corporation

"Andrey" <andrej_no@spam_telemed.lt> wrote in message
news:ueYf09HTDHA.1320@TK2MSFTNGP12.phx.gbl...

Thank you.
Problem was that I did this on a pin but not on a filter.

--
Andrey
"Arnaud G." <arnaudg@nospam.com> wrote in message
news:#ScYDlITDHA.560@TK2MSFTNGP10.phx.gbl...