SubscribeCallback Delegate

In asynchronous subscribe mode, the prototype of the callback function.

Namespace: TDengineDriver
Assembly: TDengineDriver (in TDengineDriver.dll) Version: 1.0.6

Syntax

public delegate void SubscribeCallback(
	IntPtr subscribe,
	IntPtr tasRes,
	IntPtr param,
	int code
)

subscribe: Type: SystemIntPtr
Subscription object return by Subscribe(IntPtr, Boolean, String, String, SubscribeCallback, IntPtr, Int32)
tasRes: Type: SystemIntPtr
Query retrieve result set. (Note there may be no record in the result set.)
param: Type: SystemIntPtr
Additional parameters supplied by the client when Subscribe(IntPtr, Boolean, String, String, SubscribeCallback, IntPtr, Int32) is called.
code: Type: SystemInt32
Error code.