GraphEdit Help

View Filter Registry Data

When you add filters, GraphEdit uses the system device enumerator to enumerate all of the filters registered on your system. They appear in a tree view, listed by category (see Add Filters to the Graph).

To view the registry data for a particular filter, click the plus (+) symbol next to the name of the filter. The following information is displayed.

Filter Information

Item Description
DisplayName The display name provided by the filter moniker, as returned by the IMoniker::GetDisplayName method.
Merit The filter's merit value.
Version The version of the registration format used to register this filter.

For more information, see REGFILTER2 in the Microsoft DirectShow documentation.

Pin Information

Item Description
bMany If 1, the filter might have multiple instances of this pin.
bOutput If 1, this pin is an output pin.
bRendered If 1, the filter renders the data from this pin. (Applies only to input pins.)
bZero If 1, the filter might have zero instances of this pin.
ClsPinCategory The pin category, taken from the pin property set.

For more information, see REGFILTERPINS and REGFILTERPINS2 in the DirectShow documentation.

Media Type Information

Item Description
major type The major type GUID
subtype The subtype GUID

For more information, see AM_MEDIA_TYPE in the DirectShow documentation.

Medium Information

Item Description
medium clsid The GUID that specifies the medium set
Data 1 The ID number of the medium
Data 2 Not used

For more information, see REGPINMEDIUM in the DirectShow documentation.


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