GTK Button - Funktion ausführen solange der Button gedrückt wird

wellnestom

Ich hab mal ne Frage:
Wenn ich mit

g_signal_connect (m1xplus, "clicked", G_CALLBACK(m1xfplus), NULL);

einen Button connecte, und ihn dan anklicke, wir die Funktion 'm1xfplus' EINMAL ausgeführt. Nun möchte ich aber das die Funktion solange immer und immerwieder ausgeführt wird, solange der Button gedrückt bleibt.

Wie gehts das?

Gruß Tom

So was??

#include <gtk/gtk.h>
typedef struct 
{
  gboolean  finish;
  GtkWidget *window;
} WorkFields;

static gboolean
time_handler(WorkFields *work)
{
  if ((work->window == NULL) || (work->finish)) return FALSE; // Stop g_timeout

  g_print("working...\n");
  return TRUE; // Continue g_timeout
}

void button_pressed(GtkWidget *widget, WorkFields *work)
{
  g_print("pressed\n");
  work->finish = FALSE;
  g_timeout_add(1000, (GSourceFunc) time_handler, work); // call every second
  return;
}
void button_released(GtkWidget *widget, WorkFields *work)
{
  g_print("released\n");
  work->finish = TRUE;
  return;
}

int main( int argc, char *argv[])
{
  GtkWidget *fixed;
  GtkWidget *button;
  WorkFields *work;
  // Allocate storage
  work = g_slice_new (WorkFields);

  gtk_init(&argc, &argv);

  work->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title(GTK_WINDOW(work->window), "GtkButton");
  gtk_window_set_default_size(GTK_WINDOW(work->window), 230, 150);
  gtk_window_set_position(GTK_WINDOW(work->window), GTK_WIN_POS_CENTER);

  fixed = gtk_fixed_new();
  gtk_container_add(GTK_CONTAINER(work->window), fixed);

  button = gtk_button_new_with_label("Press");
  gtk_fixed_put(GTK_FIXED(fixed), button, 50, 50);
  gtk_widget_set_size_request(button, 80, 35);

  g_signal_connect(G_OBJECT(button), "pressed", 
      G_CALLBACK(button_pressed), work);

  g_signal_connect(G_OBJECT(button), "released", 
      G_CALLBACK(button_released), work);

  g_signal_connect(G_OBJECT(work->window), "destroy", 
      G_CALLBACK(gtk_main_quit), NULL);

  gtk_widget_show_all(work->window);

  gtk_main();
  // Free alocated storage
  g_slice_free (WorkFields, work);

  return 0;
}