如何在运行时访问 Delphi 2009 功能区按钮的选中属性?
我想在单击任何功能区按钮时将功能区的所有 TAction 对象的“checked”属性重置为 false,然后仅在按下的按钮上将其设置为 true。 但我还没有找到一种方法来访问 ActionManager 的 Actions 的所有“checked”属性。 我想我需要循环遍历动作管理器的动作列表......但是,但我还没有找到正确的方法。 如果有人能给我一些提示,我会很高兴。
谢谢!
I want to reset the "checked" property of all TAction objects of a ribbon to false when clicking on any ribbon button and then only set it true on the pressed button.
But I did not yet find a way to access all the "checked" properties of the ActionManager's Actions.
I think I need to loop through the actionmanager's actionlist... however, but I did not yet find the right way to do.
I'd be very glad if someone could give me some hint on this.
Thanks!
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TActionManager
源自TCustomActionList
,因此无论您能用后者做什么,您都可以用前者做什么。 它有两个您需要使用的属性:Actions
,它是一个数组属性,可让您访问所有列表的操作;ActionCount
,它告诉您有多少个操作有。 使用它们编写一个普通的循环,如下所示:操作列表可以容纳多种类型的操作,并且它们并不都具有
Checked
属性。 该属性是在TCustomAction
中引入的,因此上面的代码也过滤掉了不属于该类的内容。TActionManager
descends fromTCustomActionList
, so whatever you can do with the latter, you can do with the former. It has two properties you'll need to use,Actions
, which is the array property that gives you access to all the list's actions, andActionCount
, which tells you how many there are. Use them to write an ordinary loop, like this:Action lists can hold lots of kinds of actions, and they don't all have
Checked
properties. That property is introduced inTCustomAction
, so the code above also filters out the things that don't descend from that class.