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TDx_Draw_Library v2.00 Component Reference
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[ TDx_DrawVideoPortContainer::GetVideoPortConnectInfo() ]
[ next: Internal_EnumVideoPortsCallback() ]
[ prev: EnumVideoPorts() ]
public:
virtual bool __fastcall GetVideoPortConnectInfo( dword pPortId, dword* pNumEntries, TDDVideoPortConnect* pConnectInfo );
TDX_DRAWVIDEOPORTCONTAINER::GETVIDEOPORTCONNECTINFO()
[ component method ]
- Description
The
TDx_DrawVideoPortContainer::GetVideoPortConnectInfo
method
will
retrieve
connection
information
from
the
specified
video
port.
Before
calling
this
method,
make
sure
to
setup
the
TDDVideoPortConnect
multiwrapper
component
with
appropriate
data.
If
the
method
call
fails,
the
OnError
event
will
be
triggered
with
one
of
the
following
values:
DSERR_INVALIDPARAM
DSERR_OUTOFMEMORY
- Parameters
PortId
The PortId parameter defines the ID of the video port for which connection information is to be retrieved.
NumEntries
The NumEntries parameter references the size of the array referenced by the ConnectInfo parameter of this method.
When this value is less than the total connections, the array is filled, this parameter is set to the total number of connections and DDERR_MOREDATA returned in both fErrorValue and the OnError() event.
ConnectInfo
The ConnectInfo parameter references a TDDVideoPortConnect multiwrapper component used for holding the retrieved connection information if this method returns successfully.
When this parameter is NULL, the NumEntries parameter of this component will be set to the total number of connections supported and true returned.
- See Also
- Top
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