IEMobile and event.keyCode

[Larry Newnam]

Goal: My user will have an RF gun (scan gun with keys) running a
simple app in IEMobile. I need to know when they press a function key
(like F8).

This does not work for me:
document.onkeydown = function getcode(ev) {
value = (window.external) ? event.keyCode : ev.keyCode;
alert(value);
}

Does anyone know of an alternative way to capture the event in
IEMobile?

Expect lavish praise if you can figure this out - that's all I can
offer really.

 

[Henry]

Goal: My user will have an RF gun (scan gun with keys)
running a simple app in IEMobile. I need to know when
they press a function key
(like F8).

This does not work for me:
document.onkeydown = function getcode(ev) {
value = (window.external) ? event.keyCode : ev.keyCode;

^^^^^^^^^^^^^^^
Why the insane object inference? What is the relationship you are
proposing between whether the browser's window object has an -
external - property with trueness and the handling of event objects?

alert(value);

}

Does anyone know of an alternative way to capture the event in
IEMobile?

Expect lavish praise if you can figure this out - that's all I can
offer really.

The odds are pretty good that your IE mobile browser does not have a -
window.external - object and that silly inference alone is your
problem. The normal cross browser handling for event objects is to
normalize the event object (function parameter vs. global event
reference) with:-

ev = ev || window.event;

- and then read the key code from that normalised object:-

value = ev.keyCode;

In the event that IE mobile does not provide a - keyCode - property
you might try looking up older alternatives. And also try other events
such as keypress and keyup.