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Layer.Add Method

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Visio Automation Reference

Adds a Shape object to a Layer object.

Version Information
 Version Added:  Visio 2.0

Syntax

expression.Add(SheetObject, fPresMems)

expression   A variable that represents a Layer object.

Parameters

Name Required/Optional Data Type Description
SheetObject Required [IVSHAPE] The new Shape object added to the Layer object.
fPresMems Required Integer Zero to remove subshapes from any previous layer assignments; non-zero to preserve layer assignments.

Return Value
Nothing

Remarks

If the shape is a group and fPresMems is non-zero, the component shapes of the group retain their current layer assignments and are also added to this layer. If fPresMems is zero, the component shapes are reassigned to this layer and lose their current layer assignments.

Example

The following example shows how to use the Add method to add Shape objects to a Layer object. When the Shape object you add to a Layer object is a group shape, use the fPresMems argument of the Add method to specify whether the component shapes of the group retain or lose their previous layer assignments. If the shape you add is not a group shape, the fPresMems argument has no effect, but is still required.

In the example, two new layers are created. Two rectangle shapes are drawn and then added to the first layer. Subsequently, the rectangles are grouped into a group shape. The group shape is then selected and duplicated, and the duplicate group shapes are added to the second layer in two different ways.

Layer assignments of the component shapes of vsoShapeGroup2 are retained by passing a non-zero value for the fPresMems argument of the Add method, but previous layer assignments of the component shapes of vsoShapeGroup1 are lost when zero is passed to the Add method for that argument. As a result, the component shapes of vsoShapeGroup1 are assigned only to vsoLayer2, while the components of vsoShapeGroup2 are assigned to both vsoLayer1 and vsoLayer2.

Visual Basic for Applications 
  Public Sub AddShapesToLayer_Example()
 
    Dim vsoDocument As Visio.Document 
    Dim vsoPages As Visio.Pages 
    Dim vsoPage As Visio.Page 
    Dim vsoLayers As Visio.Layers 
    Dim vsoLayer1 As Visio.Layer 
    Dim vsoLayer2 As Visio.Layer 
    Dim vsoShape1 As Visio.Shape 
    Dim vsoShape2 As Visio.Shape 
    Dim vsoShapeGroup1 As Visio.Shape 
    Dim vsoShapeGroup2 As Visio.Shape 

'Add a Document object based on the Basic Diagram template.
Set vsoDocument = Documents.Add("Basic Diagram.vst") 

'Get the Pages collection and add a page to the collection.
Set vsoPages = vsoDocument.Pages 
Set vsoPage = vsoPages.Add 

'Get the Layers collection and add two layers
'to the collection. 
Set vsoLayers = vsoPage.Layers 
Set vsoLayer1 = vsoLayers.Add("MyLayer") 
Set vsoLayer2 = vsoLayers.Add("MySecondLayer") 

'Draw two rectangles.
Set vsoShape1 = vsoPage.DrawRectangle(3, 3, 5, 6) 
Set vsoShape2 = vsoPage.DrawRectangle(4, 4, 6, 7) 

'Assign each rectangle to the first layer.
vsoLayer1.Add vsoShape1, 0 
vsoLayer1.Add vsoShape2, 0 

'Select the two rectangles and group them.
ActiveWindow.SelectAll 
ActiveWindow.Selection.Group 

'Duplicate the group and set each group as a Shape object.
Set vsoShapeGroup1 = vsoPage.Shapes(1) 
vsoShapeGroup1.Duplicate
Set vsoShapeGroup2 = vsoPage.Shapes(2)

'Add the first grouped shape to the second layer.
'This group's component shapes are added to the layer
'but lose their previous layer assignment.
vsoLayer2.Add vsoShapeGroup1, 0 

'Add the second grouped shape to the second layer.
'This group's component shapes are added to the layer
'but retain their previous layer assignment.
vsoLayer2.Add vsoShapeGroup2, 1 



End Sub

See Also