IAdsNotificationsTryAddDeviceNotification(UInt32, UInt32, Int32, NotificationSettings, Object, UInt32) Method
Connects a variable to the ADS client. The ADS client will be notified by the AdsNotification event.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads.Abstractions (in
TwinCAT.Ads.Abstractions.dll) Version:
7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470
Syntax
C#
AdsErrorCode TryAddDeviceNotification(
uint indexGroup,
uint indexOffset,
int dataSize,
NotificationSettings settings,
Object? userData,
out uint handle
)Parameters
|
indexGroup UInt32 |
The index group number of the requested ADS service. |
|
indexOffset UInt32 |
The index offset number of the requested ADS service. |
|
dataSize Int32 |
Maximum amount of data in bytes to receive with this ADS Notification. |
|
settings NotificationSettings |
The Notification settings. |
|
userData Object |
This object can be used to store user specific data (tag data) |
|
handle UInt32 |
The notification handle. |
Remarks
The
dataSize
Parameter defines the amount of bytes, that will be attached to the AdsNotification as value. Because notifications allocate TwinCAT system resources, a complementary call to TryDeleteDeviceNotification(UInt32) should always called when the notification is not used anymore.
Reference
IAdsNotifications Interface TryAddDeviceNotification Overload TwinCAT.Ads Namespace TryDeleteDeviceNotification(UInt32) AdsNotification AdsNotificationError {0} Overload {0} Overload {0} Overload
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