GTK 如何傳遞signal ?
GTK 如何傳遞signal ?
GTK透過GDK來處理事件，GDK會將每個接受到的XEvent轉換為GdkEvent，然後傳播給GtkWidget，引發一個與事件相對應的事件Signal，再透過Callback函式處理事件。
from 良葛格GTK學習筆記 GDK 事件結構
In the X Window System core protocol, only four kinds of packets are sent, asynchronously, over the network: requests, replies, events, and errors.
from wiki : X Window System core protocol
Xlib is an X Window System protocol client library in the C programming language. It contains functions for interacting with an X server. These functions allow programmers to write programs without knowing the details of the protocol.
from wiki : Xlib
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