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Control Events

Control events are generated from onscreen user interface objects-buttons, checkboxes, scroll bars, and so forth.

Table C-2. Required Parameter Names and Types for Control Event Kinds

Event kind	Parameter name	Parameter type
`kEventControlInitialize`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamInitCollection`	`typeCollection`
`kEventControlDispose`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlGetOptimalBounds`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlOptimalBounds`	`typeQDRectangle`
`kEventControlHit`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
	`kEventParamKeyModifiers`	`typeUInt32`
`kEventControlSimulateHit`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlHitTest`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
	`kEventParamControlPart`	`typeControlPartCode`
`kEventControlDraw`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlApplyTextColor`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlSubControl`	`typeControlRef`
	`kEventParamControlDrawDepth`	`typeShortInteger`
	`kEventParamControlDrawInColor`	`typeBoolean`
`kEventControlSetFocusPart`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
`kEventControlGetFocusPart`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
`kEventControlActivate`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlDeactivate`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlSetCursor`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
	`kEventParamKeyModifiers`	`typeUInt32`
`kEventControlContextualMenuClick`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
`kEventControlTrack`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
	`kEventParamKeyModifiers`	`typeUInt32`
	`kEventParamControlAction`	`typeControlActionUPP`
	`kEventParamControlPart`	`typeControlPartCode`
`kEventControlGetScrollToHereStartPoint`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
	`kEventParamKeyModifiers`	`typeUInt32`
`kEventControlGetIndicatorDragConstraint`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamMouseLocation`	`typeQDPoint`
	`kEventParamKeyModifiers`	`typeUInt32`
	`kEventParamControlIndicatorDragConstraint`	`typeIndicatorDragConstraint`
`kEventControlIndicatorMoved`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlIndicatorRegion`	`typeQDRgnHandle`
	`kEventParamControlIsGhosting`	`typeBoolean`
`kEventControlGhostingFinished`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlIndicatorOffset`	`typeQDPoint`
`kEventControlGetActionProcPart`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamKeyModifiers`	`typeUInt32`
	`kEventParamControlPart`	`typeControlPartCode`
`kEventControlGetPartRegion`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
	`kEventParamControlRegion`	`typeQDRgnHandle`
`kEventControlGetPartBounds`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
	`kEventParamControlBounds`	`typeQDRectangle`
`kEventControlSetData`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
	`kEventParamControlDataTag`	`typeEnumeration`
	`kEventParamControlDataBuffer`	`typePtr`
	`kEventParamControlDataBufferSize`	`typeLongInteger`
`kEventControlGetData`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlPart`	`typeControlPartCode`
	`kEventParamControlDataTag`	`typeEnumeration`
	`kEventParamControlDataBuffer`	`typePtr`
	`kEventParamControlDataBufferSize`	`typeLongInteger`
`kEventControlValueFieldChanged`	`kEventParamDirectObject`	`typeControlRef`
`kEventControlAddedSubControl`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlSubControl`	`typeControlRef`
`kEventControlRemovingSubControl`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlSubControl`	`typeControlRef`
`kEventControlBoundsChanged`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamAttributes`	`typeUInt32`
	`kEventParamOriginalBounds`	`typeQDRectangle`
	`kEventParamPreviousBounds`	`typeQDRectangle`
	`kEventParamCurrentBounds`	`typeQDRectangle`
`kEventControlOwningWindowChanged`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamAttributes`	`typeUInt32`
	`kEventParamControlOriginalOwningWindow`	`typeWindowRef`
	`kEventParamControlCurrentOwningWindow`	`typeWindowRef`
`kEventControlArbitraryMessage`	`kEventParamDirectObject`	`typeControlRef`
	`kEventParamControlMessage`	`typeShortInteger`
	`kEventParamControlParam`	`typeLongInteger`
	`kEventParamControlResult`	`typeLongInteger`

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Table of Contents for Control Events

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Control Events

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Control Events