Delegate CellAreaContextClassData.GetPreferredHeightForWidthCallback
public delegate void CellAreaContextClassData.GetPreferredHeightForWidthCallback(IntPtr context, int width, out int minimumHeight, out int naturalHeight)
public delegate void CellAreaContextClassData.GetPreferredHeightForWidthCallback(IntPtr context, int width, out int minimumHeight, out int naturalHeight)