<pre name="code" class="sql">Scrollbar : 滚动条
Scale 滑动块
滚动条是一个衍生的部件,用于联系滚动条的部件,如果你想要创建一个部件附上滚动条,
你会无疑的明白这个特性的用处,它通常会降低代码的数量。
创建一个部件和滚动杆，可以用滚动的方式。
$widget = $parent->Scrolled('Widget', -scrollbars => 'string' [, options ]);
'Widget' 可以试任何的部件支持滚动条 比如 Text,Listbox,etc
scrollbars => SIDE：
指定滚动条创建的位置: w，e 或者n s ,或者是他们其中的组合。
如果指定了0选项,那么滚动条只有当真的需要滚动时才会显示
-activebackground => color
Sets the color the Scrollbar should be when the mouse pointer is over it.
指定激活滚动杆时的颜色
-activerelief => 'flat' | 'groove' | 'raised' | 'ridge' | 'sunken'
Determines how active elements are drawn. The elements in question are arrow1, arrow2, and slider.
设定3D效果
-background => color
Sets the background color of the Scrollbar (not the trough color).
设定滚动杆的背景颜色
18
-borderwidth => amount
Sets the width of the edges of the Scrollbar and the arrow1, arrow2, and slider elements.
设定滚动杆边框的宽度
-command => callback
Sets the callback that is invoked when the Scrollbar is clicked.
设定当滚动杆滑动时所呼叫的程序
-cursor => cursorname
Sets the cursor that is displayed when the mouse pointer is over the Scrollbar.
设定当鼠标放在滚动杆上时鼠标改变的形状
-elementborderwidth => amount
Sets the width of the borders of the arrow1, arrow2, and slider elements.
设定边缘宽度
-highlightbackground => color
Sets the color the highlight rectangle around the Scrollbar widget should be when it does not have the keyboard focus.
当滚动杆不是键盘输入焦点时，设定其颜色
-highlightcolor => color
Sets the color the highlight rectangle around the Scrollbar should be when it does have the keyboard focus.
当滚动杆成为键盘输入焦点时，设定其颜色
-highlightthickness => amount
Sets the thickness of the highlight rectangle. Default is 2.
设定焦点的宽度，默认值为2
-jump => 0 | 1
Indicates whether or not the Scrollbar will jump scroll.
指定附着在滚动杆上的内容是否延迟到鼠标松开时才更新
-orient => "horizontal" | "vertical"
Sets the orientation of the Scrollbar.
指定滚动杆是横着还是竖着放
-relief => 'flat'|'groove'|'raised'|'ridge'|'sunken'|'solid'
Sets the edges of the widget.
设置滚动杆的3D效果
-repeatdelay => time
Sets the number of milliseconds required to hold down an arrow before it will auto-repeat. Default is 300 ms.
必须在自动重复多少时间前，按下一个按钮或按键才有效
-repeatinterval => time
Sets the number of milliseconds in between auto-repeats. Default is 100 ms.
动作开始后，自动重复之间的间隔时间
-takefocus => 0 | 1 | undef
Controls whether the Scrollbar can obtain the keyboard focus.
设定该滚动杆的聚焦状态
-troughcolor => color
Changes the color of the trough (both trough1 and trough2).
改变槽的颜色
-width => amount
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Sets the width of the Scrollbar.
设置滚动杆的宽度