键盘事件全面控制

站内搜索

热门关键字：表格超链接漂浮跟随旋转闪烁日期艺术字滚动点击关联菜单弹出随机

网页特效分类

网页特效分类 >> 综合特效

键盘事件全面控制

[ 发布者：肥鱼 | 来源：本站整理 | 时间：2005-11-21 | 浏览：人次 ]

<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>网页特效|JcwCn.Com/Js|---键盘事件全面控制</title>
<STYLE TYPE="text/css">
TD {text-align:center}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
function init() {
	document.onkeydown = showKeyDown
	document.onkeyup = showKeyUp
	document.onkeypress = showKeyPress
}

function showKeyDown(evt) {
	evt = (evt) ? evt : window.event
	document.getElementById("pressKeyCode").innerHTML = 0
	document.getElementById("upKeyCode").innerHTML = 0
	document.getElementById("pressCharCode").innerHTML = 0
	document.getElementById("upCharCode").innerHTML = 0
	restoreModifiers("")
	restoreModifiers("Down")
	restoreModifiers("Up")
	document.getElementById("downKeyCode").innerHTML = evt.keyCode
	if (evt.charCode) {
		document.getElementById("downCharCode").innerHTML = evt.charCode
	}
	showModifiers("Down", evt)
}
function showKeyUp(evt) {
	evt = (evt) ? evt : window.event
	document.getElementById("upKeyCode").innerHTML = evt.keyCode
	if (evt.charCode) {
		document.getElementById("upCharCode").innerHTML = evt.charCode
	}
	showModifiers("Up", evt)
	return false
}
function showKeyPress(evt) {
	evt = (evt) ? evt : window.event
	document.getElementById("pressKeyCode").innerHTML = evt.keyCode
	if (evt.charCode) {
		document.getElementById("pressCharCode").innerHTML = evt.charCode
	}
	showModifiers("", evt)
	return false
}
function showModifiers(ext, evt) {
	restoreModifiers(ext)
	if (evt.shiftKey) {
		document.getElementById("shift" + ext).style.backgroundColor = "#ff0000"
	}
	if (evt.ctrlKey) {
		document.getElementById("ctrl" + ext).style.backgroundColor = "#00ff00"
	}
	if (evt.altKey) {
		document.getElementById("alt" + ext).style.backgroundColor = "#0000ff"
	}
}
function restoreModifiers(ext) {
	document.getElementById("shift" + ext).style.backgroundColor = "#ffffff"
	document.getElementById("ctrl" + ext).style.backgroundColor = "#ffffff"
	document.getElementById("alt" + ext).style.backgroundColor = "#ffffff"
}
</SCRIPT>
</HEAD>

<BODY onLoad="init()">
<H1>Keyboard Event Handler Lab</H1>
<HR>
<FORM>
<TABLE BORDER=2 CELLPADDING=2>
<TR><TH></TH><TH>onKeyDown</TH><TH>onKeyPress</TH><TH>onKeyUp</TH></TR>
<TR><TH>Key Codes</TH>
	<TD ID="downKeyCode">0</TD>
	<TD ID="pressKeyCode">0</TD>
	<TD ID="upKeyCode">0</TD>
</TR>
<TR><TH>Char Codes (IE5/Mac; NN6)</TH>
	<TD ID="downCharCode">0</TD>
	<TD ID="pressCharCode">0</TD>
	<TD ID="upCharCode">0</TD>
</TR>
<TR><TH ROWSPAN=3>Modifier Keys</TH>
	<TD><SPAN ID="shiftDown">Shift</SPAN></TD>
	<TD><SPAN ID="shift">Shift</SPAN></TD>
	<TD><SPAN ID="shiftUp">Shift</SPAN></TD>
</TR>
<TR>
	<TD><SPAN ID="ctrlDown">Ctrl</SPAN></TD>
	<TD><SPAN ID="ctrl">Ctrl</SPAN></TD>
	<TD><SPAN ID="ctrlUp">Ctrl</SPAN></TD>
</TR>
<TR>
	<TD><SPAN ID="altDown">Alt</SPAN></TD>
	<TD><SPAN ID="alt">Alt</SPAN></TD>
	<TD><SPAN ID="altUp">Alt</SPAN></TD>
</TR>
</TABLE>
</FORM>
</BODY>
</HTML>

本类相关特效

点击TextArea实现光标定...

Window Media Player 播...