ContentsIndex
Graphics.UI.ObjectIO.StdControlClass
Portabilityportable
Stabilityprovisional
Maintainerka2_mail@yahoo.com
Description
StdControlClass define the standard set of controls instances.
Synopsis
class Controls cdef where
controlToHandles :: cdef ls ps -> GUI ps [ControlState ls ps]
type ControlState ls ps = WElementHandle ls ps
Documentation
class Controls cdef where
For every user defined control we must have instance of Controls class. There is also instances for AddLS, NewLS, ListLS, NilLS and TupLS data types. Controls can be combined with ':+:' and ListLS constructors. With AddLS and NewLS we can extend or change the local state of a given group of controls. NilLS specifies empty control.
Methods
controlToHandles :: cdef ls ps -> GUI ps [ControlState ls ps]
controlToHandles translates control definition to internal representation
show/hide Instances
type ControlState ls ps = WElementHandle ls ps
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