在创建操作窗格控件的基础句柄所在线程上异步执行委托。

Executes the specified delegate asynchronously on the thread that the actions pane control's underlying handle was created on.

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考虑一下这种情况：您需要指定每个控件如何使用其单元格中的剩余空间。

Consider the case where you need to specify how each control USES excess space within its cell.

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除用户选择区之外，还有一个包含控件按钮和预览窗格的部分。

In addition to the user selection area, there is a section containing the control buttons and a preview pane.

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