| 
    
     |  | こんな方法もありました。 但し、両方マクロになってしまいますが・・・。
 '======================================================
 Sub 線なしTextbox()
 Dim shp As Shape
 Set shp = ActiveSheet.Shapes.AddTextbox(msoTextOrientationHorizontal, 0, 0, 10, 10)
 With shp
 .Line.Visible = msoFalse
 .SetShapesDefaultProperties
 .Delete
 End With
 Application.CommandBars("Drawing").Controls(9).Execute
 
 End Sub
 ==========================================================================
 Sub 線ありTextbox()
 Dim shp As Shape
 Set shp = ActiveSheet.Shapes.AddTextbox(msoTextOrientationHorizontal, 0, 0, 10, 10)
 With shp
 .Line.Visible = msoTrue
 .SetShapesDefaultProperties
 .Delete
 End With
 Application.CommandBars("Drawing").Controls(9).Execute
 End Sub
 
 
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