ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
About the HTML environment
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Note: If you set the document.designMode property to on, then all elements in the document are editable, regardless of
the setting of contentEditable for an individual element. However, setting designMode to off, does not disable
editing of elements for which contentEditable is true. See “Document.designMode property” on page 967 for
additional information.
Data: URLs
Adobe AIR 2 and later
AIR supports data: URLs for the following elements:
img
input type=”image”
CSS rules allowing images (such as background-image)
Data URLs allow you to insert binary image data directly into a CSS or HTML document as a base64-encoded string.
The following example uses a data: URL as a repeating background:
body {
backgroundimage:url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAMAAABHPGVmAAAAGXRFWHRTb2Z
0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAAZQTFRF%2F6cA%2F%2F%2F%2Fgxp3lwAAAAJ0Uk5T%2FwDltzBKAAA
BF0lEQVR42uzZQQ7CMAxE0e%2F7X5oNCyRocWzPiJbMBZ6qpIljE%2BnwklgKG7kwUjc2IkIaxkY0CPdEsCCasws6ShX
BgmBBmEagpXQQLAgWBAuSY2gaKaWPYEGwIEwg0FRmECwIFoQeQjJlhJWUEFazjFDJCkI5WYRWMgjtfEGYyQnCXD4jTCd
m1zmngFpBFznwVNi5RPSbwbWnpYr%2BBHi%2FtCTfgPLEPL7jBctAKBRptXJ8M%2BprIuZKu%2BUKcg4YK1PLz7kx4bS
qHyPaT4d%2B28OCJJiRBo4FCQsSA0bziT3XubMgYUG6fc5fatmGBQkL0hoJ1IaZMiQsSFiQ8vRscTjlQOI2iHZwtpHuf
%2BJAYiOiJSkj8Z%2FIQ4ABANvXGLd3%2BZMrAAAAAElFTkSuQmCC');
background-repeat:repeat;
}
When using data: URLS, be aware that extra whitespace is significant. For example, the data string must be entered as
a single, unbroken line. Otherwise, the line breaks are treated as part of the data and the image cannot be decoded.
Last updated 6/6/2012
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