void pack_start ( GtkCellLayout* cell_layout, GtkCellRenderer* cell, gboolean expand )
cell into the beginning of
cell is allocated no more space than it needs. Any unused space
is divided evenly between cells for which
Note that reusing the same cell renderer is not supported.
Deprecated since: 4.10
Please do not use it in newly written code.
The data is owned by the caller of the function.
cellis to be given extra space allocated to