Hi Franco,
I see "margin-left" is deprecated since version 3.12.
This might work. If you set the container margin of the grid and then
individually place your widgets in the locations that you want them,,,
hopefully no warnings. I don't get any warnings on GTK3.18. Will something like
this work?
Eric
/*
gcc -Wall expander1.c -o expander1 `pkg-config --cflags --libs gtk+-3.0`
Tested with GTK3.18 on Ubuntu16.04
*/
#include<gtk/gtk.h>
int main(int argc, char *argv[])
{
gtk_init (&argc, &argv);
GtkWidget *window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Expander");
gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
GtkWidget *check1=gtk_check_button_new_with_label("Check1");
gtk_widget_set_hexpand(check1, TRUE);
gtk_widget_set_vexpand(check1, TRUE);
GtkWidget *check2=gtk_check_button_new_with_label("Check2");
gtk_widget_set_hexpand(check2, TRUE);
gtk_widget_set_vexpand(check2, TRUE);
gtk_widget_set_halign(check2, GTK_ALIGN_CENTER);
GtkWidget *label=gtk_label_new("Label");
gtk_widget_set_hexpand(label, TRUE);
gtk_widget_set_vexpand(label, TRUE);
GtkWidget *grid=gtk_grid_new();
gtk_container_set_border_width(GTK_CONTAINER(grid), 20);
gtk_grid_attach(GTK_GRID(grid), check1, 0, 0, 1, 1);
gtk_grid_attach(GTK_GRID(grid), check2, 0, 1, 1, 1);
gtk_grid_attach(GTK_GRID(grid), label, 0, 2, 1, 1);
GtkWidget *expander=gtk_expander_new("Expander");
gtk_container_add(GTK_CONTAINER(expander), grid);
gtk_container_add(GTK_CONTAINER(window), expander);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
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