Delegate CellRendererClassData.GetPreferredWidthForHeightCallback
public delegate void CellRendererClassData.GetPreferredWidthForHeightCallback(nint cell, nint widget, int height, out int minimumWidth, out int naturalWidth)
public delegate void CellRendererClassData.GetPreferredWidthForHeightCallback(nint cell, nint widget, int height, out int minimumWidth, out int naturalWidth)