Gtk对象、名称、类型等
我在 Glade 中创建了一个窗口和带有 3 个按钮的 vbox。所有按钮都将“Clicked”事件连接到同一处理程序。处理程序如下所示：
CLICKED_btn(GtkObject *object, gpointer user_data)
{
g_print("CLICKED\n");
}
对于任何按钮的任何单击，CLICKED 都会出现在终端上。 在所有按钮使用相同处理程序的情况下，是否有一种方法可以通过对象或其他方式知道哪个按钮调用事件 Clicked？
I Created a window and vbox with 3 buttons in Glade. All buttons have connected "Clicked" event to same handler. Handler looks like this:
CLICKED_btn(GtkObject *object, gpointer user_data)
{
g_print("CLICKED\n");
}
CLICKED appears on terminal for any click to any button.
Is here a way, through object or other to know which button invokes event Clicked in case where all buttons uses same handler?
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object参数指的是生成事件的对象，在您的例子中是按钮。然后你可以使用 gtk_widget_get_name() 或任何其他 GtkObject/GtkWidget/GtkButton 函数来做出改变。更新：
看起来，较新版本的 GTK/Glade 没有将小部件的名称设置为它们的
id，因此保留默认值，即类型的名称。为了获取对象的id，您可以使用适用于任何可构建对象的函数gtk_buildable_get_name()。这样，您将获得
button1、button2或您为这些按钮指定的任何名称。请不要使用标签来区分按钮。是的，它有效，但这是一个坏习惯：难以维护，国际化不好，并且违背了 Glade 的主要目的：将界面和代码分开。
The
objectparameter refers to the object that generates the event, in your case the button. Then you can usegtk_widget_get_name()or any other GtkObject/GtkWidget/GtkButton function to make a difference.UPDATE:
As it seems, newer versions of GTK/Glade do not set the name of the widgets to their
id, so it is left to the default, that is the name of the type. In order to get theidof the object you can use the functiongtk_buildable_get_name()that works with any buildable object.With that you'll get
button1,button2or whatever name you put to these buttons.Please, do not use the label to make a difference between the buttons. Yes, it works, but it is a bad habit: hard to maintain, bad with internationalization, and defeats the main purpose of Glade: to have the interface and the code separated.
首先使用文档为 “clicked”信号。
然后您就知道回调的原型应该如下所示：
void on_button_cliked (GtkButton *button, gpointer user_data)button参数是接收信号的对象，即。您单击的按钮。First use the documentation to have the right prototype for the "clicked" signal of a GtkButton.
You then know that your callback's prototype should look like:
void on_button_cliked (GtkButton *button, gpointer user_data)The
buttonparameter is the object which received the signal, ie. the button on which you clicked.