GTK入门导引

gtk_container_add (GTK_CONTAINER(event_box), widget);

#include <gtk/gtk.h>
int 
main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *event_box;
GtkWidget *label;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Event Box");
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (gtk_exit), NULL);
gtk_container_border_width (GTK_CONTAINER (window), 10);
/* 产生一个EventBox并加到其上层的视窗 */
event_box = gtk_event_box_new ();
gtk_container_add (GTK_CONTAINER(window), event_box);
gtk_widget_show (event_box);
/* 产生一个长标题 */
label = gtk_label_new ("Click here to quit, quit, quit, quit, quit");
gtk_container_add (GTK_CONTAINER (event_box), label);
gtk_widget_show (label);
/* 把它裁短 */
gtk_widget_set_usize (label, 110, 20);
/* And bind an action to it */
gtk_widget_set_events (event_box, GDK_BUTTON_PRESS_MASK);
gtk_signal_connect (GTK_OBJECT(event_box), "button_press_event",
GTK_SIGNAL_FUNC (gtk_exit), NULL);
/* 还有一件事, 要X window来处理 ... */
gtk_widget_realize (event_box);
gdk_window_set_cursor (event_box->window, gdk_cursor_new (GDK_HAND1));
gtk_widget_show (window);
gtk_main ();
return 0;
}

GtkWidget* gtk_label_new (char *str);

void gtk_label_set (GtkLabel*label,
char*str);

void gtk_label_get (GtkLabel*label,
char **str);

GtkWidget *gtk_progress_bar_new (void);

void gtk_progress_bar_update (GtkProgressBar *pbar, gfloat percentage);

#include <gtk/gtk.h>
static int ptimer = 0;
int pstat = TRUE;
/* This function increments and updates the progress bar, it also resets
 the progress bar if pstat is FALSE */
gint progress (gpointer data)
{
gfloat pvalue;
/* get the current value of the progress bar */
pvalue = GTK_PROGRESS_BAR (data)->percentage;
if ((pvalue >= 1.0)'  '(pstat == FALSE)) {
pvalue = 0.0;
pstat = TRUE;
}
pvalue += 0.01;
gtk_progress_bar_update (GTK_PROGRESS_BAR (data), pvalue);
return TRUE;
}
/* This function signals a reset of the progress bar */
void progress_r (void)
{
pstat = FALSE;
}
void destroy (GtkWidget *widget, gpointer *data)
{
gtk_main_quit ();
}
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *label;
GtkWidget *table;
GtkWidget *pbar;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (destroy), NULL);
gtk_container_border_width (GTK_CONTAINER (window), 10);
table = gtk_table_new(3,2,TRUE);
gtk_container_add (GTK_CONTAINER (window), table);
label = gtk_label_new ("Progress Bar Example");
gtk_table_attach_defaults(GTK_TABLE(table), label, 0,2,0,1);
gtk_widget_show(label);
/* Create a new progress bar, pack it into the table, and show it */
pbar = gtk_progress_bar_new ();
gtk_table_attach_defaults(GTK_TABLE(table), pbar, 0,2,1,2);
gtk_widget_show (pbar);
/* Set the timeout to handle automatic updating of the progress bar */
ptimer = gtk_timeout_add (100, progress, pbar);
/* This button signals the progress bar to be reset */
button = gtk_button_new_with_label ("Reset");
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (progress_r), NULL);
gtk_table_attach_defaults(GTK_TABLE(table), button, 0,1,2,3);
gtk_widget_show(button);
button = gtk_button_new_with_label ("Cancel");
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (destroy), NULL);
gtk_table_attach_defaults(GTK_TABLE(table), button, 1,2,2,3);
gtk_widget_show (button);
gtk_widget_show(table);
gtk_widget_show(window);
gtk_main ();
return 0;
}