gifs show up as black boxes in Win

Christoph_Louven · November 25, 2013, 1:22pm

Hi,

in my app I use several gifs as backdrop in canvases or icon in bevel buttons. On MacOS everything is fine, but ob Win7 all images are shown as black boxes.
All gifs have 24 bit color and an alpha channel.

Any ideas?

Greetings,
Christoph

Michel_Bujardet · November 25, 2013, 3:18pm

[quote=48590:@Christoph Louven]Hi,

in my app I use several gifs as backdrop in canvases or icon in bevel buttons. On MacOS everything is fine, but ob Win7 all images are shown as black boxes.
All gifs have 24 bit color and an alpha channel.

Any ideas?
[/quote]

The same occurred to me with png pictures when I tried to generate a Windows EXE from Xojo Mac. The very same code generated with Xojo Windows for Windows does not exhibit the same bug and works fine

Hopefully this will get fixed soon…

Christoph_Louven · November 25, 2013, 4:23pm

As I just noticed, the issue is described in Feedback case 30492. As a workaround you have to delete the ~Library/Caches/Xojo-Cache on your Mac before compiling for Windows.
Weired!

Norman_P · November 25, 2013, 4:30pm

Just out of curiosity are either of you using 10.9 on a new Haswell based machine and compiling for Windows ?

Michel_Bujardet · November 25, 2013, 8:27pm

When I did I was still using ML 10.8.5.

Stefan_Zilz · November 25, 2013, 8:33pm

have a look here

if you have the possibility, compile in a vm running windows should do the trick until xojo fixed the bug

Christoph_Louven · November 26, 2013, 12:00am

Mavericks YES
Haswell NO (Mid 2012 MacBook Pro)

Emile_Schwarz · November 26, 2013, 9:40am

All gifs have 24 bit color and an alpha channel.
May not been related, but if I use an image (png here) with an alpha channel on a Windows XP compiled application, I got black rect.

I was thinking Windowsx XP does not like alpha channel

Related ?
Am I right (Windowsx XP does not like alpha channel) ?

Roger_Meier · February 25, 2014, 6:32am

I’m having the same issue on my brand new, Fall 2013, core i7 iMac with 10.9. PNGs in the project (toolbar icons, etc) show up as black boxes on Windows builds. However, my early 2009 MacBook Pro compiles Windows builds just fine. Cleaning out the cache does not seem to solve the issue.

Emile_Schwarz · February 25, 2014, 10:04am

Can you reboot into Mt. Lion and try again ?

I am waiting Mavericks 10.9.2 (test it first) to re-install it.

Norman_P · February 25, 2014, 4:25pm

This is a 10.9 issue more than anything

https://forum.xojo.com/9442-all-images-black
https://forum.xojo.com/7896-does-anyone-know-why-images-are-black