如何处理GTK + 3中的键盘事件? [英] How do I handle keyboard events in GTK+3?

问题描述

在GTK + 3中我应该使用什么信号/功能来获得键盘输入?

What signals/functions should I use to get keyboard input in GTK+3?

我环顾四周，并且我所知道的唯一教程涵盖了GTK + 3( zetcode 和 gnome开发人员)似乎并没有涵盖这一点.

I have looked around and the only tutorials I know of that cover GTK+3 (zetcode and gnome developer) don't seem to cover that.

任何人都可以向我指出正确的方向吗?

Anyone can point me in the right direction?

推荐答案

感谢您的建议，它确实很有帮助.我迷路了，因此我的问题也许太笼统了，无法逃避C社区一部分的传统否决.我将在这里总结如何在GTK3中处理键盘事件，我希望它会很有用，因为我无法在其他任何地方找到它.

Thanks xing for your advice, It was really helpful. I was lost, hence my question that is perhaps too general to escape the traditional downvoting of part of the C community. I will summarize here how to handle keyboard events in GTK3, which I hope will be useful since I cannot find it put together anywhere else.

想象一下您正在使用GTK + 3，并且希望您的应用程序在按空格键时可以执行某些操作.这是您的操作方式:

Imagine you are using GTK+3 and you want your application to do something when you press the space key. This is how you do it:

-首先为您的 Gdk.Window 启用 #GDK_KEY_PRESS_MASK 掩码:

-First enable the #GDK_KEY_PRESS_MASK mask for your Gdk.Window:

gtk_widget_add_events(window, GDK_KEY_PRESS_MASK);

-然后，您将窗口与 keyboard_press() 函数连接:

-Then you connect the window with the keyboard_press() function:

g_signal_connect (G_OBJECT (window), "key_press_event", G_CALLBACK (my_keypress_function), NULL);

-一旦按下空格键，将 keyboard_press() 定义为以下内容:

-Define your keyboard_press() to something once the space key has been pressed:

gboolean my_keypress_function (GtkWidget *widget, GdkEventKey *event, gpointer data) {
    if (event->keyval == GDK_KEY_space){
        printf("SPACE KEY PRESSED!");
        return TRUE;
    }
    return FALSE;
}

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