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對轉儲(?)提問抱歉。如何將GTK Combobox添加到工具欄?我用Google搜索了它,但沒有找到答案。它編譯沒有錯誤,但是當我運行該應用程序下面的消息打印到控制檯:工具欄中的組合框
Gtk-CRITICAL **: gtk_toolbar_insert: assertion 'GTK_IS_TOOL_ITEM (item)' failed
下面是工具欄+組合框的例子:
using Gtk;
public class Example : Object {
private Window _win;
private Toolbar _tb;
public Example() {
_win = new Window();
_win.title = "Test";
_win.window_position = WindowPosition.CENTER;
_win.set_default_size(800, 600);
_win.destroy.connect(Gtk.main_quit);
_tb = new Toolbar();
var img = new Image.from_icon_name("document-new", Gtk.IconSize.SMALL_TOOLBAR);
var btn = new ToolButton(img, "New");
_tb.add(btn);
add_zoombox();
var vbox = new Box(Orientation.VERTICAL, 0);
vbox.pack_start(_tb, false, true, 0);
_win.add(vbox);
}
private void add_zoombox() {
ListStore list = new ListStore(1, typeof (int));
for(int i = 25; i<= 400; i*=2) {
TreeIter iter;
list.append(out iter);
list.set(iter, 0, i);
}
ComboBox cb = new ComboBox.with_model(list);
CellRendererText r = new CellRendererText();
cb.pack_start(r, false);
cb.set_active(0);
_tb.add(cb);
cb.show();
}
public void show_window() {
_win.show_all();
}
}
public static int main (string[] args) {
Gtk.init(ref args);
Example ex = new Example();
ex.show_window();
Gtk.main();
return 0;
}