Shape.LockAspectRatio Property (Word)
MsoTrue if the specified shape retains its original proportions when you resize it. MsoFalse if you can change the height and width of the shape independently of one another when you resize it. Read/write MsoTriState.
Syntax
expression .LockAspectRatio
expression Required. A variable that represents a Shape object.
Example
This example adds a cube to myDocument. The cube can be moved and resized but not reproportioned.
Set myDocument = ActiveDocument
myDocument.Shapes.AddShape(msoShapeCube, _
50, 50, 100, 200).LockAspectRatio = msoTrue