I'm writing an app that allows the user to open up a window when they put in a shortcut key.
I have this feature working but I would like to know what shortcut key combination would be best. I obviously don't want to pick something like Ctrl-C as I want the user to be able to use the program without having to Copy to clipboard each time.
At the moment, I've made Ctrl-Alt-R which I think is obscure enough. The only other program I've seen use this is VS2010 which loads up some non-useful page.
Is there some sort of etiquette when it comes to assigning global shortcut keys?
EDIT - Hi guys, to clarify, yes it's a GLOBAL shortcut designed to be used when the program is not in focus. And the program doesn't make much sense without it. It's a language dictionary/flash card program that runs on the task bar, when the user presses the shortcut, it's supposed to search the dictionary and add the highlighted word to their flash card collection.
Therefore, things like Ctrl-T or anything that is commonly used is not going to be good as I don't want them opening up my program when they want to open up a new tab.
Key, you might as well pick a key that makes sense from a semantic point of view. I.e.
tstands for new tab,
nfor new document, so pick a letter than makes sense in your application, for example
dfor dictionary (after you have ensured, no major software commonly uses that).