Chapter 5 Inview Control And Inview Control Api; Section 5.1 Introduction; Section 5.2 Quick Overview; Section 5.3 Reference - Allied Motion Spectrum Controls 2706-P22-SC User Manual

Section 5.1 Introduction

Section 5.2 Quick Overview

Section 5.3 Reference

Chapter 5 InView Control and
InView Control API
The purpose of this chapter is to describe the API for the InView control. The
chapter is divided into two sections. The first section is a quick overview on how
to use the control. It highlights the basic steps needed to get the control up and
running. The second section is a detailed reference of the properties and methods
available in the control. Each property and method are listed in a table with a
brief description and a link to a more complete description.
The InView control is designed primarily for use with the InView messaging
software. The InView messaging software is used to create and download
messages to the display, and the InView control is used to trigger the messages
and update variables within those messages. Assuming that the InView
messaging software has already been used to load the display with messages,
there are five basic steps to using the control to trigger a message:
1. Add the control to your project. It appears as InView control under
Project|Components... in Visual Basic.
2. Call the Initialize method to open a connection to the display.
3. Set the heartbeat property to 2 to disable the display's heartbeat
requirement.
4. Call the AddMessage method to trigger a message on the display.
5. Call the UpdateVariable method to change the value of a variable.
Following is a snapshot of a Visual Basic form and its associated code that
illustrates these five steps. This code assumes that the display contains a message
in slot number 1, and that the message contains variable 0 within its body. It also
uses the controls default communications settings of serial on COM1 to connect
with the display:
Private Sub Command1_Click()
InViewCtrl1.UpdateVariable 0, Text1.Text
End Sub
Private Sub Form_Load()
InViewCtrl1.Initialize
InViewCtrl1.Heartbeat = 2
InViewCtrl1.AddMessage 1
End Sub
Name: InView Control
ProgID: Invwctrl.InView
Interface: InViewCtrl SupportErrorInfo
'Update variable
0 with
'number in edit box
'Open COM1
'Disable heartbeat
'Trigger message #1
User's Manual 0300277-03 Rev. A