Platform SDK: DirectX

IKsControl::KsProperty

The IKsControl::KsProperty method gets or sets the value of a property. For an overview, see Port Property Sets.

HRESULT KsProperty(
  PKSPROPERTY pProperty, 
  ULONG ulPropertyLength,
  LPVOID pvPropertyData,
  ULONG ulDataLength,
  PULONG pulBytesReturned
);

Parameters

pProperty
Address of a KSPROPERTY structure that gives the property set, item, and operation to perform. If this property contains instance data, that data should reside in memory immediately following the structure.
ulPropertyLength
Length of the memory pointed to by pProperty, including any instance data.
pvPropertyData
For a set operation, the address of a memory buffer containing data representing the new value of the property. For a get operation, the address of a memory buffer big enough to hold the value of the property. For a basic support query, the address of a buffer at least a DWORD in size.
ulDataLength
Length of the buffer pointed to by pvPropertyData.
pulBytesReturned
On a KSPROPERTY_TYPE_GET or KSPROPERTY_TYPE_BASICSUPPORT call, address of a variable to receive the number of bytes returned in pvPropertyData by the port.

Return Values

If the method succeeds, it returns S_OK.

If it fails, the method can return one of the following error values:

E_FAIL
E_INVALIDARG
E_NOTIMPL
E_OUTOFMEMORY
E_POINTER
DMUS_E_UNKNOWN_PROPERTY

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dmksctrl.h.

See Also

Port Property Sets