[ka-Map-users] PNG transparency not supported in internet explorer

[Emil Zegers]

PNG transparency not supported in internet explorerHello Jacob,

At the moment IE 5.5+ does not properly support PNG transparancy (IE7 beta
does, see http://blogs.msdn.com/ie/archive/2005/07/29/445242.aspx)

However, there are some hacks to provide PNG transparancy for 24/32 bit
PNG's in IE 5.5+, some are listed at
http://blogs.msdn.com/ie/archive/2005/04/26/412263.aspx.

A good one is the hack at webfx
http://webfx.eae.net/dhtml/pngbehavior/pngbehavior.html

Of course do not forget to question yourself if using hacks for this is what
you want. On the other hand if you want to support PNG transparancy for IE
this is a nice solution.

Regards,

Emil
  -----Original Message-----
  From: ka-map-users-bounces at lists.maptools.org
[mailto:ka-map-users-bounces at lists.maptools.org]On Behalf Of Delfos, Jacob
  Sent: donderdag 4 augustus 2005 4:32
  To: ka-map-users at lists.maptools.org
  Subject: [ka-Map-users] PNG transparency not supported in internet
explorer


  Hi all,

  Just figured out why Internet Explorer keeps coming up with a blank map,
but not sure how to fix it. It would appear that Internet Explorer does not
support the PNG transparency that mapserver outputs. So my transparent
vector layers come out perfectly white where there's no data. Firefox does
support it, though. In the screenshot you can see a normal tile and a
transparent tile next to one another. The tile comes out transparent in
firefox, but not in internet explorer. Has anyone else had this? And....
anything I can do about it?

  Not sure of this is in Bugzilla. Seems bugzilla for Ka-Map is down......

  Regards,

  Jacob



  <<kamap.jpg>>

  JACOB DELFOS
  SPATIAL INFORMATION ANALYST
  Maunsell Australia Pty Ltd
  629 Newcastle Street, Leederville, WA 6007
  PO Box 81, Leederville, WA 6902
  Western Australia
  ABN 20 093 846 925

  Tel     + 61 8 9281 6185
  Fax    + 61 8 9281 6297
  jacob.delfos at maunsell.com
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