[mapguide-internals] changing mapguide's image type

Paul Spencer pspencer at dmsolutions.ca
Mon Feb 5 14:17:51 EST 2007

A quick search of google didn't reveal any stunning revelations on  
this so either it doesn't or not many people have switched to ie7  
yet.  I'm using IE 7 on one machine and haven't had any problems with  
the method I outlined so its still compatible I guess.



On 5-Feb-07, at 1:41 PM, Jason Birch wrote:

> I thought that 24bit alpha was available (but slow) in IE7?
> Jason
> -----Original Message-----
> From: mapguide-internals-bounces at lists.osgeo.org
> [mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of Paul
> Spencer
> Sent: Monday, February 05, 2007 10:40
> To: MapGuide Internals Mail List
> Subject: Re: [mapguide-internals] changing mapguide's image type
> Trevor, I have some experience with the png thing :)  There is no
> problem overlaying 8 bit png with transparency in any browser.  The
> problem starts in IE when you use PNG24 with alpha transparency.
> PNG24 with normal transparency works.  Its only the alpha transparency
> that breaks things.
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|Paul Spencer                          pspencer at dmsolutions.ca    |
|Chief Technology Officer                                         |
|DM Solutions Group Inc                http://www.dmsolutions.ca/ |

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