Restrict keyboard shortcuts in TinyMCE editor

Question

Trying to find where to disable individual keyboard shortcuts in the jQuery version of TinyMCE editor. Currently the list of allowable shortcuts is:

• ctrl+z

Answer 1

OK so I was able to get this to work. I was able to block firefox using Doug's code above to get IE to disable the key's I wanted I had to add this code after Doug's code block.

var $iframe = $('iframe').contents().get(0);

$($iframe).keydown(function(oEvent) {
    //italics (ctrl+i & Cmd+i [Safari doesn't allow you to test for Cmd])
    if (oEvent.keyCode == '73' && (oEvent.metaKey || oEvent.ctrlKey)){
        oEvent.preventDefault();
        return false;
    }

    //underline (ctrl+u & cmd+u [Safari doesn't allow you to test for cmd])
    if (oEvent.keyCode == '85' && (oEvent.metaKey || oEvent.ctrlKey)){
        oEvent.preventDefault();
        return false;
    }
});

So basically TinyMCE dynamically loads the editor as a iFrame so I disabled the Ctrl+u and Ctrl+i from the iFrame. I what till the iFrame is finished loading and then attach a keydown event and sniff for Ctrl+i and Ctrl+i (I also sniff Cmd+i and Cmd+u for the mac [although Safari won't let you test for cmd according to this link. Everything else is disabled that I need disabled.