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输入字段中键盘输入的处理

通过WSEV_KEY_HOOK触发器的事件处理,对输入字段中键盘输入进行处理。

# WSEV_KEY_HOOK触发器的事件处理例
# 设置WSEV_KEY_HOOK触发器
...

def hookop(object)
  # 获取键盘码
  key = Mpfc::WSGIappKeyboard().getKey()
  if  (key >= Mpfc::WSK_0    && key <= Mpfc::WSK_9   ) ||
       (key >= Mpfc::WSK_KP_0 && key <= Mpfc::WSK_KP_9) ||
        key == Mpfc::WSK_plus      || key == Mpfc::WSK_minus  ||
        key == Mpfc::WSK_BackSpace || key == Mpfc::WSK_Delete || key == Mpfc::WSK_Insert ||
        key == Mpfc::WSK_space     || key == Mpfc::WSK_Up     || key == Mpfc::WSK_Down   ||
        key == Mpfc::WSK_Left      || key == Mpfc::WSK_Right  || key == Mpfc::WSK_Return ))
    # 只接受关心的键盘输入
    return
  end
  # 屏蔽其他键盘输入
  Mpfc::WSGIappKeyboard().setKey(0)
end

上述的例子中,只接受数字输入。通过键盘对象的getKey()函数获得当前的键盘输入码。 通过 setKey(0) 函数将不需要的输入内容删除。

Document Release 3.70 for WideStudio ver 3.70, May 2004


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Copyright(C) WideStudio Development Team, 1999-2004 Last modified: May 25, 2004