'宣言 Public Property SignatureStampImageRectangle As Nullable(Of RectangleF)
public Nullable<RectangleF> SignatureStampImageRectangle {get; set;}
'宣言 Public Property SignatureStampImageRectangle As Nullable(Of RectangleF)
public Nullable<RectangleF> SignatureStampImageRectangle {get; set;}