AdsConnection.CreateVariableHandleAsync Method
Determines the Symbol handle by its instance path asynchronously.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 6.0.328+39e3229
Syntax
C#
public Task<ResultHandle> CreateVariableHandleAsync(
string variableName,
CancellationToken cancel
)
Parameters
|
variableName |
Type: System.String |
|
cancel |
Type: System.Threading.CancellationToken |
Return Value
Type: Task.ResultHandle.
A task that represents the asynchronous
'CreateVariableHandle' operation. The ResultHandle
parameter contains the variable handle (Handle) and the
ErrorCode
after execution.
Remarks
It is a good practice to release all variable handles after use to regain internal resources in the TwinCAT subsystem. The composite method to this CreateVariableHandleAsync(String, CancellationToken) is the DeleteVariableHandleAsync(UInt32, CancellationToken)