diff --git a/(notes) b/(notes)
new file mode 100644
index 0000000..266d77a
--- /dev/null
+++ b/(notes)
@@ -0,0 +1,31 @@
+--------------------------------------------------------------------------------
+https://docs.gtk.org/gtk4/visual_index.html            widgets gallery
+https://forge.a-lec.org/gem-graph/gem-graph-client/src/branch/devel/Makefile
+https://docs.gtk.org/gtk4/class.Widget.html#height-for-width-geometry-management
+https://docs.gtk.org/gtk4/drag-and-drop.html           drag-and-drop  
+https://docs.gtk.org/gtk4/class.GestureZoom.html       GtkGestureZoom  
+--------------------------------------------------------------------------------
+
+GTK_ORIENTATION_VERTICAL       GTK_ORIENTATION_HORIZONTAL
+
+g_signal_connect (button, "clicked", G_CALLBACK (printf("%s\n", text)), text);
+g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_window_destroy), window);
+
+--------------------------------------------------------------------------------
+
+GtkBox       GtkGrid     GtkRevealer    GtkStack
+GtkOverlay   GtkPaned    GtkExpander    GtkFixed
+
+box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+gtk_widget_set_halign (box, GTK_ALIGN_FILL);
+gtk_widget_set_valign (box, GTK_ALIGN_CENTER);  //  START  CENTER  END  FILL
+gtk_window_set_child (GTK_WINDOW (window), box);
+puis, après déclaration du bouton, gtk_box_append (GTK_BOX (box), button);
+
+grid = gtk_grid_new ();
+gtk_window_set_child (GTK_WINDOW (window), grid);
+button = gtk_button_new_with_label (" I ");               n fois
+gtk_grid_attach (GTK_GRID (grid), button, 0, 0, 1, 1);    n fois 
+
+--------------------------------------------------------------------------------
+
diff --git a/myprogram b/myprogram
index afcc147..ffb49ff 100755
Binary files a/myprogram and b/myprogram differ
diff --git a/pages.c b/pages.c
index d4ae2e3..c3b8f97 100644
--- a/pages.c
+++ b/pages.c
@@ -166,12 +166,3 @@ void activate (GtkApplication *app, gpointer user_data) {
   gtk_window_present (GTK_WINDOW (window));
 }
 
-/*   REM !
- *   g_signal_connect         (button, "clicked", G_CALLBACK (printf("%s\n", text)), text);
- *   g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_window_destroy), window);
- *
- *   drag-and-drop  https://docs.gtk.org/gtk4/drag-and-drop.html
- *
- *   GtkGestureZoom  https://docs.gtk.org/gtk4/class.GestureZoom.html
- */
-
diff --git a/warm.o b/warm.o
index 6fac906..457afbf 100644
Binary files a/warm.o and b/warm.o differ
diff --git a/widgets.c b/widgets.c
index 0309a5b..76dbc11 100644
--- a/widgets.c
+++ b/widgets.c
@@ -16,7 +16,7 @@ GtkWidget *get_test_image(){
   image = gtk_image_new_from_file("/home/jean/01/Gtk4/Getting_Started_with_GTK/image aXoris.png");
   image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/image gg sketch.png");
   image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/image E coli (Goodsell).png");
-  gtk_widget_set_size_request (GTK_WIDGET (image), W_IMAGE, NULL);
+  gtk_widget_set_size_request (GTK_WIDGET (image), W_IMAGE, 0);
   return image;
 }
 
@@ -35,7 +35,7 @@ GtkBox *get_ZOOM_box(){
 GtkBox *get_edit_TOOL_box(){
   GtkBox *TOOL_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
   GtkWidget *ZOOM_Label = GTK_WIDGET (gtk_label_new ("TOOLS\n    ---\n(space\nstruct.)"));
-//  gtk_widget_set_size_request (GTK_WIDGET (TOOL_box), 30, 80);
+  gtk_widget_set_size_request (GTK_WIDGET (TOOL_box), 30, 120);
   gtk_box_append (TOOL_box, ZOOM_Label);
   return TOOL_box;
 }
@@ -53,7 +53,7 @@ GtkBox *get_XYZ_box(){
   GtkWidget *scroll_X = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, X_adjust);
   GtkWidget *scroll_Y = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Y_adjust);
   GtkWidget *scroll_Z = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Z_adjust);
-  gtk_widget_set_size_request (GTK_WIDGET (scroll_X), 1, 400);
+  gtk_widget_set_size_request (GTK_WIDGET (scroll_X), 1, 250);
 
   gtk_box_append (XYZ_scrollbar_box, GTK_WIDGET (gtk_label_new ("  ")));  //  AD HOC (pour "centrer")
   gtk_box_append (XYZ_scrollbar_box, scroll_X);
diff --git a/widgets.o b/widgets.o
index 1502a1b..44492cb 100644
Binary files a/widgets.o and b/widgets.o differ