ITcAdsSync::AddDeviceNotification

Connects a variable to the client. The client will be notified by a event.

HRESULT AddDeviceNotification(
 long indexGroup,
 long indexOffset,
 long cbLenData,
 ADSTRANSMODE transMode,
 long nMaxDelay,
 long nCycleTime,
 long* phNotification);

Parameters

indexGroup	[in] A variable of the type long that holds the index group of the variable we want to read.
indexOffset	[in] A variable of the type long that holds the index offset of the variable we want to read.
cbLenData	[in] Count of byte we want to read from the connected variable.
transMode	[out] The mode how the variable is connected with the type ADSTRANSMODE.
nMaxDelay	[in] The time with a resolution of 100 ns after we want to receive an callback on the implemented _ITcAdsSyncEvent interface. nCycleTime [in] The time with a resolution of 100 ns how the variable should be collected
phNotification	[out, retval] A pointer to the handle that unique identifies the connection of our variable.

Return Values

S_OK	The function was successfully called
ADSERRORCODES	An error occurs

Remarks

A nCycleTime= 10000 and nMaxDelay=100000 would receive every 10ms 10 values with the resolution of 1ms.