The WbMessenger component makes use of the workbench notification API to send a message to either a specific or all connected workbench clients. The message is sent by invoking either the "Send Broadcast" or "Send To Single User" action, which provides a popup window for entering a text message.
Send Broadcast
Executing the "Send Broadcast" action opens a dialog box which allows the user to enter a multi-line string message. Clicking the "OK" button sends the message to all connected workbench clients, both workbench and wbApplet.
Send To Single User
Executing the "Send To Single User" action opens a dialog box which allows the user to select a currently connected user and to enter a multi-line string message. Clicking the "OK" button sends the message to the specific user. Note that only users currently connected with a workbench (workbench or wbApplet) session will be listed in the drop down selector.