gtk窗口拖动

1.实现按下鼠标左键拖动窗口
1>加入事件:

gtk_widget_add_events(window, GDK_BUTTON_PRESS_MASK);

2>关联信号与button按下的事件:

g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(window_drag), NULL);

 

3>窗口拖动事件的实现:

gboolean window_drag(GtkWidget *widget, GdkEventButton *event, GdkWindowEdge edge) { if (event->button == 1) { gtk_window_begin_move_drag(GTK_WINDOW(gtk_widget_get_toplevel(widget)), event->button, event-> x_root, event->y_root, event->time); } return FALSE;

 

2.使窗口不能移出桌面最左边,在标题栏显示当前窗口的位置坐标

1>关联信号与事件:

g_signal_connect(G_OBJECT(window), "configure-event", G_CALLBACK(window_move), NULL);

2>窗口移动事件的实现:

gboolean window_move(GtkWidget *widget, GdkEvent *event, gpointer data) { gint x, y; gchar buf[10] = {0}; x = event->configure.x; y = event->configure.y; if (x <= 0)//如果窗口超出桌面最左边框 { x = 0; gtk_window_move(GTK_WINDOW(widget), x, y); } sprintf(buf, "%d,%d", x, y); gtk_window_set_title(GTK_WINDOW(widget), buf); return TRUE; }

2010-12-31