What's a good shortcut key for a global shortcut

1. What is a global hotkey?
2. What does Ctrl F9?

What is a global hotkey?

A global hot key is associated with a particular nonchild window. It allows the user to activate the window from any part of the system. An application sets a global hot key for a particular window by sending the WM_SETHOTKEY message to that window.

What does Ctrl F9?

If you work with Microsoft Excel on a regular basis, you know that it has a ton of keyboard shortcuts that can make your life a lot easier. One of the most useful shortcuts is Ctrl+Alt+F9, which allows you to quickly recalculate all the formulas in your worksheet.