LockAspectRatio Property

       

Returns or sets an MsoTriState constant indicating whether the specified shape retains its original proportions when you resize it. Read/write.

MsoTriState can be one of these MsoTriState constants.
msoCTrue  Not used with this property.
msoFalse  The height and width of the shape change independently of one another when you resize it.
msoTriStateMixed  Return value indicating a combination of msoTrue and msoFalse for the specified shape range.
msoTriStateToggle  Set value which toggles between msoTrue and msoFalse.
msoTrue  The specified shape retains its original proportions when you resize it.

expression.LockAspectRatio

expression   Required. An expression that returns one of the objects in the Applies To list.

Example

This example adds a cube to the active publication. The cube can be moved and resized, but not reproportioned.

Dim shp As Shape

Set shp = ActiveDocument.Pages(1).Shapes _
    .AddShape(Type:=msoShapeCube, _
    Left:=50, Top:=50, Width:=100, Height:=200) _

shp.LockAspectRatio = msoTrue