Brightsign Object Reference Manual (FW 5.1) Manual do Utilizador descarregar pdf (Página 62)

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roCanvasWidget

This object composites background color, text, and images into a single rectangle, allowing you to layer images on a z-

axis.

Object Creation: Like other widgets, roCanvasWidget is created with an roRectangle to set its size and position on the

screen.

CreateObject ("roCanvasWidget", r As roRectangle) As Object

Interfaces: ifCanvasWidget

The ifCanvasWidget interface provides the following:

• Hide() As Boolean: Hides the widget.

• Show() As Boolean: Shows the widget.

• SetRectangle(r As roRectangle) As Boolean: Changes the size and positioning of the widget rectangle

using the passed roRectangle object.

• SetLayer(content As Object, z-level As Integer) As Boolean: Sets the contents of a layer within

the widget. The lowest z-level is drawn first, and the highest z-level is drawn last. The object content is described

below.

• ClearLayer(int z-level) As Boolean: Clears the specified layer.

• Clear() As Boolean: Clears all of the layers.

• EnableAutoRedraw(enable As Boolean) As Boolean: Enables or disables the automatic redrawing of the

widget.

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