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How to: Expand and Collapse Spy++ Trees

You can expand and collapse the Windows, Processes, and Threads views using two methods: by clicking on the icons in the window or by using the Tree menu. The + and – icons in the tree act as they do in the Visual C++ project window.

The Tree menu contains four commands:

Menu Command


Expand One Level

Expands the currently selected item to the next level.

Expand Branch

Fully expands the currently selected item.

Expand All

Fully expands all items in the window.


Fully collapses the currently selected item.

Tip Tip

If you expand a process, you see all the threads the process owns. If you expand a thread, you see a list of all the windows it owns.

To expand or collapse Spy++ trees

  1. Highlight one of the items in the Windows, Processes, or Threads view.

  2. From the Tree menu, choose one of the expand or collapse commands.

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