Temporary Graphics Manager Add Control Method

public int AddControl(
	InCanvasControlData data,
	ElementId ownerViewId
)

Public Function AddControl ( 
	data As InCanvasControlData,
	ownerViewId As ElementId
) As Integer

public:
int AddControl(
	InCanvasControlData^ data, 
	ElementId^ ownerViewId
)

member AddControl : 
        data : InCanvasControlData * 
        ownerViewId : ElementId -> int 

Parameters

data InCanvasControlData

Data to generate in-canvas control appearance.

ownerViewId ElementId

The view in which the control appears. It will show in all views if the id is invalidElementId.

Return Value

This method can perform drawing an image (supplied by the caller) as an in-canvas control in the view(s). The control can react on click by invoking a callback defined in [!:Autodesk::Revit::UI::ITemporaryGraphicsHandler::OnClick(TemporaryGraphicsCommandData)] . The caller can use the returned index to update the control (changing image/location), delete and change visibility (hide/unhide) in response to any events later.

Reference