
Appendix A. CRBasic Programming Instructions
511
Figure Custom Menu Example (p. 70) shows windows from a simple custom menu
named DataView. DataView appears as the main menu on the keyboard display.
DataView has menu item Counter, and submenus PanelTemps, TCTemps and
System Menu. Counter allows selection of one of four values. Each submenu
displays two values from CR3000 memory. PanelTemps shows the CR3000
wiring-panel temperature at each scan, and the one-minute sample of panel
temperature. TCTemps displays two thermocouple temperatures.
.
Custom menus are constructed with the following syntax before the BeginProg
instruction.
DisplayMenu("MenuName", AddToSystem)
MenuItem("MenuItemName", Variable)
MenuPick(Item1, Item2, Item3...)
DisplayValue("MenuItemName", tablename.fieldname)
SubMenu(MenuName)
MenuItem("MenuItemName", Variable)
EndSubMenu
EndMenu
BeginProg
[program body]
EndProg
DisplayMenu/EndMenu
Marksthebeginningandendingofacustommenu.
Syntax:
DisplayMenu("MenuName", AddToSystem)
[menu definition]
EndMenu
MenuItem
Definesthenameandassociatedmeasurementvalueforaniteminacustom
menu.
Syntax:
MenuItem("MenuItemName", Variable)
DisplayLine
Displaysafulllineofread‐onlytextinacustommenu.
Syntax:
DisplayLine(Value)
MenuPick
CreatesalistofselectableoptionsthatcanbeusedwheneditingaMenuItem
value.
Syntax:
MenuPick(Item1, Item2, Item3...)
DisplayValue
Definesthenameandassociateddata‐tablevalueorvariableforanitemina
custommenu.
Syntax:
DisplayValue("MenuItemName", Expression)
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