键盘输入讯息

以下消息用于接收和处理键盘输入。

WM_ACTIVATE
WM_CHAR
WM_DEADCHAR
WM_GETHOTKEY
WM_HOTKEY
WM_KEYDOWN
WM_KEYUP
WM_KILLFOCUS
WM_SETFOCUS
WM_SETHOTKEY
WM_SYSCHAR
WM_SYSDEADCHAR
WM_SYSKEYDOWN
WM_SYSKEYUP