Bad folder thumbnails using different background color

jesped · Post by *jesped » 2011-03-15, 13:33 UTC

http://www.flickr.com/photos/lenwe/5528735993

karlchen · Post by *karlchen » 2011-03-16, 22:54 UTC

Hello, Jesus.

I just checked it out on my Vista Home Premium SP2 32-bit. Aero theme is on. Total Commander 7.56a uses a non-standard background colour, something between yellow and orange.
What gets displayed as white spots in your screenshot will be displayed as gray shadows here.
I wonder whether this problem might be related to the other problem which you reported here: http://ghisler.ch/board/viewtopic.php?t=28866.
As a matter of fact I wonder whether both problems may have the same origin.

Kind regards,
Karl

HolgerK · Post by *HolgerK » 2011-03-16, 23:29 UTC

karlchen wrote:As a matter of fact I wonder whether both problems may have the same origin.

No.
Related topic (german forum)
This is a Windows 7 specific problem (works fine in Vista) with alpha transparency PNG Explorer Icons, only noticeable if you use a dark or colored background instead of the standard white background.

Regards
Holger

jesped · Post by *jesped » 2011-03-16, 23:55 UTC

I don't understand german, sorry. Is there anything I can do to fix it?

HolgerK · Post by *HolgerK » 2011-03-17, 00:01 UTC

Afaik no, except using a white background.

Regards
Holger

Post by *ghisler(Author) » 2011-03-17, 15:20 UTC

It all depends on whether the Explorer returns pictures with transparent background or not. Apparenly Windows 7 does not. Since it's not possible to tell it what background color is needed, it uses the default window background. So to use gray, you would have to set that in Control Panel, not Total Commander.

jesped · Post by *jesped » 2011-03-27, 12:05 UTC

How can I change the background color in the Control Panel?

I'm sorry to bother you with this stupid question but I am unable to find it.

HolgerK · Post by *HolgerK » 2011-03-27, 12:48 UTC

Context menu desktop:
Personalize -> "Windows colors an appearance" -> "Open classic appearance properties for more colors" -> [Advanced]
click on Preview "Windows Text"
or select Item: "Windows"
and than change property "Color 1:"

Regrads
Holger

jesped · Post by *jesped » 2011-03-27, 14:16 UTC

Thanks again Holger.

Background color seems fixed, but now there is severe aliasing.

http://screencast.com/t/jarIJ6lWGu

moosatov · Post by *moosatov » 2011-05-10, 16:45 UTC

jesped, did you find any way how to fix this?

jesped · Post by *jesped » 2011-05-10, 17:34 UTC

Nope. Still waiting for a solution here.

moosatov · Post by *moosatov » 2011-05-10, 17:49 UTC

I think it would be easier to change the icon itself. For instance, XnView uses custom icons for folders: bit.ly/mCgTLn
But I'm not sure if it's possible in TC.

Or even simpler — custom background colour for Thumbnail View.

HolgerK · Post by *HolgerK » 2011-09-23, 14:14 UTC

History.txt wrote:23.09.11 Release Total Commander 8.0 public beta 2 (32/64)
...
20.09.11 Fixed: Thumbs view: Alpha blending (transparency) not handled correctly, folders look ugly (64)

At least for the x64 version this looks much better now in windows 7 x64.
Thanks.

Is it possible to apply the same fix in Delphi 2 code for the 32Bit version?

Regards
Holger

Post by *ghisler(Author) » 2011-09-23, 22:30 UTC

Yes, I tried it, but it doesn't work. I get a black background instead. I have no idea why it works with 64-bit but not with 32-bit. Maybe AlphaBlend is influenced by other GDI functions called before it?

Shadi9 · Post by *Shadi9 » 2012-01-12, 09:23 UTC

I have the same situation. I tried all the stuff you did, but it doesn't work either.Any ideas?