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**txbakers**

Is is possible to capture the pressing of F-Keys in JSP?

Our legacy apps use F-Keys frequently for keyboard shortcuts and we would like to continue their use while converting from 5250 to JSP.

If so, where could we find a sample to learn from?

Thanks.

**bricker42**

Well, since JSP is server-side, no. If you want to try javascript, then yes, but you have to be using mozilla (or other gecko browser). Be aware that many F-keys have a meaning to the browser (such as F5 for refresh), so you have to keep the browser from seeing the keypress. Here's some code that works for F1-F12, with the notable exception of F7, which Mozilla Firebird won't ignore.

Code:

<html>
<head>
	<script type="text/javascript">
		window.onkeypress = function( e ) {
			switch( e.keyCode ) {
				case 112:
					alert( 'F1' );
					break;
				case 113:
					alert( 'F2' );
					break;
				case 114:
					alert( 'F3' );
					break;
				case 115:
					alert( 'F4' );
					break;
				case 116:
					alert( 'F5' );
					break;
				case 117:
					alert( 'F6' );
					break;
				case 118:
					alert( 'F7' );
					break;
				case 119:
					alert( 'F8' );
					break;
				case 120:
					alert( 'F9' );
					break;
				case 121:
					alert( 'F10' );
					break;
				case 122:
					alert( 'F11' );
					break;
				case 123:
					alert( 'F12' );
					break;
				default:
					//ignore it. not an Fkey
					return true;
			}
			//try to prevent the browser from getting the input
			return false;
		}
	</script>
</head>
<body>
	Press a key, any key, but especially an F-key!
</body>
</html>

If you want to continue exploring this, I'd suggest you go start another thread in the HTML, Javascript, and CSS forum to get some refinement. You're going to need a way to get the javascript funtion to comunicate with your JSP.

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Thread: capturing F-Keys with JSP

capturing F-Keys with JSP