TdOPCGUI is a component to show values (items) of an OPC server on a graphical user interface (GUI).

TdGUIItem represents an association between a property (e.g. Text) of a visual Control (e.g. TEdit) and a TdOPCItem.

TdGUIItems is a collection of TdGUIItem objects.

TGUIRegControl provides values for the registration of properties to controls.

FinddOPCItem scans the passed OPCServer for the also passed Groupname and Itemname and returns the result as a TdOPCItem.

GetDefaultPropName fills the passed PropName with the default property name for the also passed Control and returns True on successful execution, otherwise False.

GetDefaultSetProc returns the TGUIClassSetValue for the passed Control and PropName.

RegisterGUIControl registers default properties and default work procedures for a TControl class.

TGUIClassSetValue is a procedural type to provide the ability to assign the passed OPCValue to the passed Control.

TGUIOnSetValue is used for the OnChangeData event.

TOnSetPropertyEvent is used for the OnSetProperty event.

TdOPCControl is equal to TControl.

See TdOPCControl.

GUIRegList stores the properties associated with controls.