Widget Building Library API

This chapter contains descriptions of the following functions, which are included in the widget building library API:

PtAddWidgetData()

Add data to the widget data chain

PtAnchorDeregister()

Deregister a widget from its parent for anchoring

PtAnchorRegister()

Register a widget with its parent for anchoring

PtAnchorWidget()

Anchor the provided widget

PtApplyAnchors()

Anchor a widget and its children

PtAttemptResize()

Adjust the size of a widget

PtCalcAnchorOffsets()

Update the anchoring values (rules) for the given widget

PtCalcRegion()

Determine whether or not a widget needs a region

PtChildBoundingBox()

Calculate a widget's canvas and its children's bounding boxes

PtClipAdd()

Add a clipping rectangle to the stack

PtClipRemove()

Take a clipping rectangle off the stack

PtCompoundRedirect()

Redirect widgets to a parent

PtCoreChangeRegion()

Determine if a region is required

PtCreateWidgetClass()

Create a widget class

PtDamageExposed()

Damage the specified widgets

PtDestroyCallbackList()

Free the specified callbacks

PtDestroyHotkeyCallbacks()

Free the specified hotkey callbacks

PtDestroyRawCallbacks()

Free the specified raw callbacks

PtFindNextWidgetData()

Find the next appropriate data block

PtFindResource()

Find the record associated with a resource

PtFindResourceRecord()

Deprecated. Use PtFindResource()

PtFindWidgetData()

Find the first data block of a given type and subtype

PtGetCallbackList()

Get a callback list

PtGetStruct()

Retrieve the specified resource

PtInvokeCallbackList()

Invoke a callback list

PtInvokeCallbackType()

Invoke a callback list of a specific type

PtInvokeResizeCallbacks()

Invoke the resize callbacks of the specified container

PtMoveResizeWidget()

Synchronize a widget's extent

PtRemoveWidgetData()

Remove data from the widget data chain

PtResizeCanvas()

Set the size of a widget's canvas

PtResizePolicy()

Determine whether a widget has a resize policy

PtSetExtentFromArea()

Calculate the extent of a widget

PtSetStruct()

Set the specified resource

PtSetValue()

Set the value of a resource using mod_f

PtSuperClassCalcOpaque()

Call the Calc Opaque Rect method of the specified superclass

PtSuperClassChildCreated()

Invoke a Child Created method

PtSuperClassChildDestroyed()

Invoke a Child Destroyed method

PtSuperClassChildGettingFocus()

Invoke a Child Getting Focus method

PtSuperClassChildGettingResources()

Invoke a Child Getting Resources method

PtSuperClassChildLosingFocus()

Invoke a Child Losing Focus method

PtSuperClassChildMovedResized()

Invoke a Child Moved/Resized method

PtSuperClassChildRealized()

Invoke a Child Realized method

PtSuperClassChildSettingResources()

Invoke a Child Setting Resources method

PtSuperClassChildUnrealized()

Invoke a Child Unrealized method

PtSuperClassConnect(), PtSuperClassConnectFrom()

Invoke the Connection method of the specified widget class

PtSuperClassDraw()

Invoke the Draw method of the specified superclass

PtSuperClassExtent()

Invoke the Extent method of the specified superclass

PtSuperClassGetResources()

Get the specified resource

PtSuperClassGotFocus()

Invoke the Got Focus method of the specified superclass

PtSuperClassInit(), PtSuperClassInitFrom()

Invoke the Initialize method of the specified widget class

PtSuperClassLostFocus()

Invoke the Lost Focus method of the specified superclass

PtSuperClassRawEvent(), PtSuperClassRawEventFrom()

Invoke the raw callback list of the specified widget class

PtSuperClassRealized()

Invoke the Realization method of the specified widget class

PtSuperClassSetResources()

Set resources

PtUpdateVisibility()

Tell the widget library about a change in visibility

PtWidgetAbove()

Get the widget that's above a given widget in a family hierarchy