AdsClientTryAddDeviceNotificationEx(UInt32, UInt32, NotificationSettings, Object, Type, Int32, UInt32) Method
Connects a variable to the ADS client. The ADS client will be notified by the AdsNotificationEx event.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470
Syntax
C#
public AdsErrorCode TryAddDeviceNotificationEx(
uint indexGroup,
uint indexOffset,
NotificationSettings settings,
Object? userData,
Type anyType,
int[]? args,
out uint handle
)Parameters
|
indexGroup UInt32 |
Contains the index group number of the requested ADS service. |
|
indexOffset UInt32 |
Contains the index offset number of the requested ADS service. |
|
settings NotificationSettings |
The Notification settings. |
|
userData Object |
This object can be used to store user specific data (tag data) |
|
anyType Type |
Type of the object stored in the event argument ('AnyType') |
|
args Int32 |
The 'AnyType' arguments. |
|
handle UInt32 |
The notification handle. |
Implements
Remarks
If type is a string type, the first element of the parameter args specifies the number of characters of the string. If type is an array type, the number of elements for each dimension has to be specified in the parameter args. Only primitive types (AnyType) are supported by this method. Because notifications allocate TwinCAT system resources, a complementary call to DeleteDeviceNotification(UInt32) should always called when the notification is not used anymore.
Reference
AdsClient Class TryAddDeviceNotificationEx Overload TwinCAT.Ads Namespace DeleteDeviceNotification(UInt32) AdsNotificationEx AdsNotificationError {0} Overload {0} Overload {0} Overload
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