PFNKSINTERSECTHANDLEREX callback function (ks.h)
AVStream calls a minidriver's AVStrMiniIntersectHandlerEx routine to determine the highest quality intersection of two data ranges.
Syntax
PFNKSINTERSECTHANDLEREX Pfnksintersecthandlerex;
NTSTATUS Pfnksintersecthandlerex(
[in] PVOID Context,
[in] PIRP Irp,
[in] PKSP_PIN Pin,
[in] PKSDATARANGE DataRange,
[in] PKSDATARANGE MatchingDataRange,
[in] ULONG DataBufferSize,
[out] PVOID Data,
[out] PULONG DataSize
)
{...}
Parameters
[in] Context
Pointer to the Context member of the corresponding KSFILTER structure.
[in] Irp
Pointer to the IRP containing the intersection request.
[in] Pin
Pointer to a structure of type KSP_PIN that was passed in the intersection property request.
[in] DataRange
Pointer to an array of KSDATARANGE structures.
[in] MatchingDataRange
Pointer to an array of KSDATARANGE structures to match to DataRange.
[in] DataBufferSize
Specifies a value of type ULONG that contains the size of the data buffer.
[out] Data
Pointer to an optional data buffer in which the minidriver outputs the intersection.
[out] DataSize
Pointer to a value of type ULONG specifying the size of the data buffer.
Return value
If the callback finds a match, return STATUS_SUCCESS. Otherwise return STATUS_NO_MATCH.
Remarks
The minidriver specifies this routine's address in the IntersectHandler member of a KSPIN_DESCRIPTOR_EX structure.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | ks.h |