On Sat, 6 Apr 2019 at 19:05, Eric Cashon via gtk-app-devel-list <
gtk-app-devel-list@gnome.org> wrote:
> static gboolean draw_rectangle(GtkWidget *tree_view, cairo_t *cr, gpointer
> data)
> {
> GtkTreePath *path=gtk_tree_path_new_from_indices(row_g, -1);
>
> g_print("Draw Rectangle %i %i\n", row_g, column_g);
> GdkWindow *win=gtk_tree_view_get_bin_window(GTK_TREE_VIEW(tree_view));
> cairo_t *cr2=gdk_cairo_create(win);
>
Don't ever do this.
There's a reason why you're getting a deprecation warning: you're already
getting a Cairo context from the "draw" signal; use that to draw. There's
no reason whatsoever to create a new Cairo context for a GdkWindow in GTK3.
Ciao,
Emmanuele.
--
https://www.bassi.io
[@] ebassi [@gmail.com]
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