So I want to capture some key-commands in our Docuement-level Excel VSTO addin. I can’t seem to find a way to do it, other than to use VBA and have our addin talk to the VBA. Any help/examples would be greatly appreciated.
I am using Excel 2007.
You can only do this through API calls to subclass Excel and watch for key commands. This is older, but it still applies.
One method involves using the 3rd party solution from Addin-Express. Their product includes the ability to add a keyboard shortcut as a property to the ribbon menu commands.
The other way is to make use of low level keyboard hooks, through some Win32 API’s which is generally referred to as windows subclassing. Here is an excellent explanation with code sample of how to do it. Note that the only “extra” thing you need to do to get this code to “work” in VSTO is moving the
SetHook()method to the
Startupevent, and the UnhookWindowsHookEx() method to the Shutdown event.
Finally there is the use of the
OnActionproperty of the Addin class. This method requires the use of some VBA (in terms of a callback method that points back to the underlying .net addin), and works ok so long as you are willing to distribute some VBA in your solution (i.e. a xls or doc w/ vba project, or perhaps a native addin). Note you will also need to mark
comvisible = true, and expose the
GetAutomationServiceObjectmethod so that your VBA can reference your addin from VBA code.