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This topic applies to Windows XP Service Pack 2 or later.
The KSTOPOLOGY_CONNECTION structure describes a node connection within a kernel-streaming (KS) filter. A node can be connected to another node within the filter, or to a pin on the filter.
Syntax
typedef struct __MIDL___MIDL_itf_vidcap_0000_0000_0001 {
ULONG FromNode;
ULONG FromNodePin;
ULONG ToNode;
ULONG ToNodePin;
} KSTOPOLOGY_CONNECTION, *PKSTOPOLOGY_CONNECTION;
Members
FromNode
Index of the upstream node in the connection. If the upstream connection is a pin, rather than a node, the value is KSFILTER_NODE.
FromNodePin
If the value of the FromNode field is KSFILTER_NODE, this field specifies the index of the upstream pin. Otherwise, this field is ignored.
ToNode
Index of the downstream node in the connection. If the downstream connection is a pin, rather than a node, the value is KSFILTER_NODE.
ToNodePin
If the value of the ToNode field is KSFILTER_NODE, this field specifies the index of the downstream pin. Otherwise, this field is ignored.
Requirements
| Requirement | Value |
|---|---|
| Header | vidcap.h |