RE: [gtkmm] TreeView::get_column_cell_renderer

[Murray Cumming Comneon com]

Murray Cumming
murrayc usa net
www.murrayc.com 

> -----Original Message-----
> From: Peter Gasper [mailto:pgasper designadvantage com] 
> Sent: Mittwoch, 9. Juli 2003 17:50
> To: gtkmm-list gnome org
> Subject: [gtkmm] TreeView::get_column_cell_renderer
> 
> 
> I want to modify the properties of a cell renderer. I can use the
> following function to get the cell renderer for a column. But I am not
> sure how to do the syntax for the dynamic cast descriped below:
> 
> CellRenderer* Gtk::TreeView::get_column_cell_renderer 
> (
> int 
>   n
> ) 
> 
> 
>  
> Gets the CellRenderer for that
> column.
> 
> You should dynamic_cast<> to the
> expected derived CellRenderer type.
> This assumes that the TreeViewColumn
> contains only one CellRenderer. 
> 
> 
> If I try the following it complains because get_column_cell_renderer
> returns a CellRenderer and not a CellRendererToggle:
> 
> 	Gtk::CellRendererToggle *cell=get_column_cell_renderer(column);

It would be nice if you asked pure C++ questions somewhere more appropriate.

Gtk::CellRendererToggle* cell = dynamic_cast<Gtk::CellRendererToggle*>(
get_column_cell_renderer(column) );

> 	cell->set_radio(true);
> 
> thanks.
> 
> -- 
> Peter Gasper <pgasper designadvantage com>
> 
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