CHAILink SDK  Version 1.3
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CLC_ErrorCode Output_RegisterNotificationHandler ( CPHOBJECT const  hOutput)

Register notification handler for an output.

Parameters
[in]hOutputOutput Handle.
Returns
Standard CHAILink Client return code. See CLC_ErrorCode enumeration.
Remarks
Concerned fields in the callback notification structure (CLC_NH_CallbackList) : NH_OUTPUT_FLOWCONTROL, NH_OUTPUT_DESTINATIONCHANGE, NH_OUTPUT_REFRESHPARAMETERDEFINITION, NH_OUTPUT_REFRESHCURRENTMODIFIERPARAMVALUE, NH_OUTPUT_REFRESHCURRENTSELECTORPARAMVALUE and NH_OUTPUT_REFRESHCURRENTTEXTPARAMVALUE. At least one of these fields must be set.
Warning
This function can only be called in CopperLan context. This means in the pseudo task CPDoProcess(), in notification handlers or in asynchronous return handlers and not in SystemDoProcess() for instance.