KsGetObjectTypeFromIrp function (ks.h)
The KsGetObjectTypeFromIrp function returns the AVStream object type that is associated with a given IRP.
Syntax
KSDDKAPI KSOBJECTTYPE KsGetObjectTypeFromIrp(
[in] PIRP Irp
);
Parameters
[in] Irp
A pointer to the IRP structure for which to find the associated AVStream object type.
Return value
KsGetObjectTypeFromIrp returns the type of AVStream object associated with the given IRP as a KSOBJECTTYPE enumeration. This is one of the following: KsObjectTypeDevice, KsObjectTypeFilterFactory, KsObjectTypeFilter, KsObjectTypePin.
Remarks
The KsGetObjectTypeFromIrp function does not check that the I/O request packet (IRP) is associated with a KS object. If it is not, this may result in a memory access error. Driver developers should consider using structured exception handling to catch a possible exception.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Microsoft Windows XP and later operating systems and DirectX 8.0 and later DirectX versions. |
| Target Platform | Universal |
| Header | ks.h (include Ks.h) |
| Library | Ks.lib |
| IRQL | Any level |