How to add scale in response of button for gtk+ - visual-c++

Question

I am going to create a simple user interface that has a button which controls a value, and when user click on it, a vscale appear in new window or dialog or box and so on to set value with scale.
is there any example of such program?
I am googled and find some examples but they set color and the dialog have functions for font selection and... .
Win 7_64 bit, gtk3.4.2, Visual c++
regards

Answer 1

Here is the code :
#include <gtk/gtk.h>
void value_changed(GtkRange *range, gpointer win) {
gdouble val = gtk_range_get_value(range);
gchar *str = g_strdup_printf("%.f", val);
gtk_label_set_text(GTK_LABEL(win), str);
g_free(str);
}
void value(GtkRange *range, gpointer win)
{
GtkWidget *halign;
GtkWidget *hbox;
GtkWidget *hscale;
GtkWidget *label;
GtkWidget *content_area, *label1;
GtkWidget * dia = gtk_dialog_new();
content_area = gtk_dialog_get_content_area (GTK_DIALOG (dia));
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,FALSE);
hscale = gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL,0, 100, 1);
gtk_scale_set_draw_value(GTK_SCALE(hscale), FALSE);
gtk_widget_set_size_request(hscale, 150, -1);
label = gtk_label_new("...");
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 1);
gtk_box_pack_start(GTK_BOX(hbox), hscale, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
halign = gtk_alignment_new(0, 0, 0, 0);
gtk_container_add(GTK_CONTAINER(halign), hbox);
gtk_container_add(GTK_CONTAINER(content_area), halign);
g_signal_connect(hscale, "value-changed",
G_CALLBACK(value_changed), label);
label1 = gtk_label_new ("YA ali");
gtk_container_add (GTK_CONTAINER (content_area), label1);
gtk_widget_show_all (dia);
}
int main(int argc, char *argv[]) {
GtkWidget *window;
GtkWidget *halign;
GtkWidget *hbox;
GtkWidget *hscale;
GtkWidget *label;
GtkWidget *table;
GtkWidget *btn;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 300, 250);
gtk_container_set_border_width(GTK_CONTAINER(window), 10);
gtk_window_set_title(GTK_WINDOW(window), "GtkHScale");
btn = gtk_button_new();
table = gtk_table_new(10,10,TRUE);
gtk_table_set_row_spacings(GTK_TABLE(table), 10);
gtk_table_set_col_spacings(GTK_TABLE(table), 10);
gtk_table_attach_defaults(GTK_TABLE(table),btn,2,4,4,6);
gtk_container_add(GTK_CONTAINER(window), table);
g_signal_connect(G_OBJECT(btn), "clicked",
G_CALLBACK(value), G_OBJECT(window));
g_signal_connect(window, "destroy",
G_CALLBACK(gtk_main_quit), NULL);
gtk_widget_show_all(window);
gtk_main();
return 0;
}