Comment 39 for bug 62949

The patch for qtbug 16092 caused broken BC, but I've got another way.

And THAT project will not only give us all 32 possible buttons, it will also provide the full 32-bit ButtonStateMask ** whenever a user executes the 'READ' function **.

So, you could check for concurrently pressed buttons when a MouseButtonDblClick Event is received... and make the combination of both invoke certain code as a special "shortcut", different from either oif those buttons alone. You would also be able to check for pressed ButtonStateMask buttons after receiving WHEEL events-- creating new shortcuts, or actions, for those combinations as well. (How about scroll up/scroll down + RIGHTBUTTON == zoom out, zoom in? Entirely on the mouse, without reaching for the keyboard at all.

I can do it, at least on x11. Whther Qt wil accept it is another matter entirely.