次のサンプルコードは、GetSheetTabRectangleメソッドを使用します。
FarPoint.Win.Spread.SpreadView sv;
Rectangle r;
fpSpread1.Sheets.Count = 3;
sv = fpSpread1.GetRootWorkbook();
r = sv.GetSheetTabRectangle(0);
MessageBox.Show(r.Size.ToString());
Dim sv As FarPoint.Win.Spread.SpreadView
Dim r As Rectangle
FpSpread1.Sheets.Count = 3
sv = FpSpread1.GetRootWorkbook()
r = sv.GetSheetTabRectangle(0)
MessageBox.Show(r.Size.ToString())