JavaScript Reference/Javascript Properties/bufferDepth — различия между версиями
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Текущая версия на 08:22, 26 мая 2010
Содержание
"bufferDepth" Example
<html>
<head>
<script language="JavaScript">
function function1() {
if (navigator.appName.indexOf("Microsoft") != -1) {
alert("The buffering for this screen is "+screen.bufferDepth);
} else {
alert(" no default for buffering depth");
}
}
function function2() {
screen.bufferDepth = -1;
alert("The buffering depth for this screen has been changed to "+screen.bufferDepth);
}
</script>
</head>
<body>
<input type="button" value="No Buffering" onClick="function1();">
<input type="button" value="Same as Color Depth" onClick="function2();">
</body>
</html>
"bufferDepth" is applied to
+----------------+--------------------------------------------------------------+
| Applied_To |screen |
+----------------+--------------------------------------------------------------+
"bufferDepth" Possible Values
Possible Values
0 the default; no buffering occurs
-1 buffering occurs at screen depth; this is the optimum value),
1,
4,
8,
15,
16,
24,
32 buffering occurs at the specified color depth
"bufferDepth" Syntax and Note
Note:
Read and write property.
Controls the color depth of the screen buffer.
Specified in bits per pixel.
Syntax:
screen.bufferDepth = value