IFdtChannelSubTopology::ValidateAddChild() method information

M&M FDT 1.2.1 Online Specification
IFdtChannelSubTopology::ValidateAddChild() method information

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4.5.4.4 IFdtChannelSubTopology::ValidateAddChild()

This method can be called in the states:

HRESULT ValidateAddChild (
[in] BSTR childSystemTag,
[out, retval] VARIANT_BOOL* result
);

Description:

Validates if a given device, specified by its systemTag, can be added to the sub-topology

Parameters:

childSystemTag

SystemTag of to the child DTM

Return Value:

result

TRUE Topology valid FALSE Topology invalid

Behavior:

The channel validates the connection. If the connection is valid it will return TRUE. If the DTM needs more information about the child it can get the DTM via IFdtTopology::GetDtmForSystemTag() passing the received systemTag.

Comments:

Device-DTMs with more than one required protocol should include busCategory information in the <BusInformation> element. If a 1.2.1. DTM is connected to a 1.2 communication channel,

An 1.2.1 Frame Application has to consider:

the first BusInformation element in the DtmParameter document of the DTM is regarded as primary protocol
the Frame Application needs to check if the primary protocol of the DTM is supported by the communication channel

An 1.2 Frame Application:

The DTM can support only one protocol, because the old schemas supports only one BusInformation element See also chapter 4.5.4.1

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Last updated 2015-02-05 15:17
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