Re: learning gtk.. using sams examples :)

[cesar <ciriso ave128 retena es>]

 Hi  ( Sorry for my abominable english )
 
 I have download source code
 In the chapter 6 there are :
 
 antioco:~/devel/GTK/gtk/chapter6$ ls -la
total 28
-rw-r--r--    1 kaesar   kaesar       3212 Feb 28  2000 6callbacks.c
-rw-r--r--    1 kaesar   kaesar       6599 Feb 28  2000 acc.c
-rw-r--r--    1 kaesar   kaesar       6760 Feb 28  2000 cascade.c
-rw-r--r--    1 kaesar   kaesar       4421 Feb 28  2000 itemfac.c

 The callbacks are in 6callbacks.c so ...

 gcc -g -o base0 6callbacks.c itemfac.c `gtk-config --libs --cflags`
 gcc -g -o base1 6callbacks.c cascade.c `gtk-config --libs --cflags`
 gcc -g -o base2 6callbacks.c acc.c `gtk-config --libs --cflags`
 
 ...works fine.


 Regards.
 César. 
 

mdew wrote:
> I was sampling some of the sams learn gtk+ in 21 days... and when compiling a few programs... i got this 
> error... Running Debian Sid (gtk+ 1.2.10, glib 1.2.10)
>
> $ gcc itemfac.c -Wall -o base `gtk-config --libs --cflags`
> /tmp/ccB5KkZJ.o: In function `main':
> /tmp/ccB5KkZJ.o(.text+0x338): undefined reference to `dialog_delete_handler'
> /tmp/ccB5KkZJ.o(.text+0x386): undefined reference to `delete_event_handler'
> /tmp/ccB5KkZJ.o(.text+0x3d4): undefined reference to `print_and_quit'
> /tmp/ccB5KkZJ.o(.text+0x50a): undefined reference to `line_plot'
> /tmp/ccB5KkZJ.o(.rodata+0x98): undefined reference to `print_and_quit'
> collect2: ld returned 1 exit status
>
> #include <gtk/gtk.h>
> #define NO_PADDING 0
> #define NO_SPACING 0
>
> /* Callbacks */
> void line_plot( GtkMenuItem *was_clicked, GtkWidget *where_to_draw );
> void print_and_quit( GtkButton *was_clicked, gpointer user_data );
> gboolean delete_event_handler( GtkWidget *widget, GdkEvent *event,
>                                gpointer user_data );
> gboolean dialog_delete_handler( GtkWidget *widget, GdkEvent *event,
>                                gpointer user_data );
>
> int main( int argc, char *argv[] )
> {
>   GtkWidget *top_widget;
>   GtkWidget *vbox, *menu_bar;
>   GtkWidget *plot_area;
>   GtkWidget *about_dialog, *about_label, *about_ok;
>
>   GtkAccelGroup *accel_group, *accel_about;
>
>   GtkItemFactory *ifac;
>   GtkItemFactoryEntry items[] = { { "/File", NULL, NULL, 0, "<Branch>" },
>                     { "/File/_Exit", "<Ctrl>Q", print_and_quit, 0, "<Item>" },
>                     { "/Plot", NULL, NULL, 0, "<Item>" },
>                     { "/Help", NULL, NULL, 0, "<Branch>" },
>                     { "/Help/What's This?", NULL, NULL, 0, "<Item>" },
>                     { "/Help/Separator", NULL, NULL, 0, "<Separator>" },
>                     { "/Help/About my program", NULL, NULL, 0, "<Item>" }};
>
>   /* 1. Initialize the environment */
>     gtk_init( &argc, &argv );
>
>   /* 2a. Create widgets */
>     top_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
>     vbox = gtk_vbox_new( FALSE, NO_SPACING );
>
>    /* Create the Work Area */
>     plot_area = gtk_drawing_area_new();
>
>   /* Set up the accelerator group */
>    accel_group = gtk_accel_group_new();
>    gtk_accel_group_attach( accel_group, GTK_OBJECT( top_widget ) );
>
>    /* Create the item factory */
>    ifac = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", accel_group );
>
>    /* Instantiate the item factory entries */
>    gtk_item_factory_create_items( ifac, sizeof(items)/sizeof(items[0]),
>               items, NULL );
>    menu_bar = gtk_item_factory_get_widget( ifac, "<main>" );
>
>    /* Create pop-up dialog */
>    about_dialog  = gtk_dialog_new();
>    accel_about = gtk_accel_group_new();
>    gtk_accel_group_attach( accel_about, GTK_OBJECT( about_dialog ) );
>    about_label = gtk_label_new( "This is a simple plotting program\n"
>                   "It currently accepts no outside data, \n"
>                   "though this feature will be available in a future release.\n"                  "Author: 
> You\n Version 0.0.1\n" );
>    about_ok = gtk_button_new_with_label( "OK" );
>   /* Put the label in vbox, and the button in action_area */
>    gtk_box_pack_start( GTK_BOX( GTK_DIALOG(about_dialog)->vbox), about_label,
>               FALSE, FALSE, NO_PADDING );
>    gtk_box_pack_start( GTK_BOX(GTK_DIALOG(about_dialog)->action_area), about_ok,              FALSE, FALSE, 
> NO_PADDING );
>    gtk_widget_show( about_label );
>    gtk_widget_show( about_ok );
>    gtk_signal_connect_object( GTK_OBJECT( about_ok ), "clicked",
>            GTK_SIGNAL_FUNC( gtk_widget_hide ), GTK_OBJECT( about_dialog ) );
>
>   /* 2b. Set Attributes */
>     gtk_window_set_title( GTK_WINDOW( top_widget ), "Item Factory" );
>     gtk_drawing_area_size( GTK_DRAWING_AREA(plot_area), 300, 200 );
>
>   /* 3. Registering Callback routines */
>     gtk_signal_connect( GTK_OBJECT( about_dialog ), "delete_event",
>                         GTK_SIGNAL_FUNC(dialog_delete_handler), NULL );
>     gtk_signal_connect( GTK_OBJECT( top_widget ), "delete_event",
>                         GTK_SIGNAL_FUNC(delete_event_handler), NULL );
>     gtk_signal_connect( GTK_OBJECT( top_widget ), "destroy",
>                         GTK_SIGNAL_FUNC(print_and_quit), NULL );
>     gtk_signal_connect_object(
>          GTK_OBJECT( gtk_item_factory_get_widget( ifac, "/Help/About my program" ) ),
>               "activate", GTK_SIGNAL_FUNC( gtk_widget_show ),
>               GTK_OBJECT( about_dialog ) );
>     gtk_signal_connect( GTK_OBJECT( gtk_item_factory_get_widget( ifac, "/Plot" ) ),
>                 "activate", line_plot, plot_area );
>
>   /* 4. Defining the Instance Hierarchy */
>     gtk_container_add( GTK_CONTAINER( top_widget ), vbox );
>     gtk_box_pack_start( GTK_BOX(vbox), menu_bar, FALSE, FALSE, NO_PADDING);
>     gtk_box_pack_start( GTK_BOX(vbox), plot_area, FALSE, FALSE, NO_PADDING );
>
>   /* 5. Showing the Widgets */
>     gtk_widget_show_all( top_widget );
>
>   /* 6. Processing Loop */
>     gtk_main();
>     g_print( "Bye!\n");
>     return 0;
> }
>
> --
>
> id: 9DF3262C
> key fingerprint: B556 04DA CFD9 78DD 9215  A970 8196 FB6D 9DF3 262C
>
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