Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have customized my alt-tab screen with the following:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\AltTab]
"OverlayIconPx"=dword:00000040
"MaxThumbSizePx"=dword:00000100
"MinThumbSizePcent"=dword:00000064

It works great: the thumbnail becomes 256 pixel wide and the icon at the corner of the thumbnail becomes 64x64 pixels. However, Windows doesn't load the high-res icons from the programs; instead, it uses the 16x16 pixel icon and scaled it up by nearest-neighbor. I'm sure the programs has high-res icons because I saw them with in "Extra Large Icon" view in Explorer.

So the question is: How can I force Windows to load the high-res icons for the alt-tab thumbnail preview? (Perhaps a registry key, or a .dll hack/injection?)

share|improve this question
    
To clarify: the thumbnail is good; my problem concerns the icon overlaid at the corner of the thumbnail. –  netvope Jan 18 '10 at 2:51
add comment

3 Answers 3

I'm adding another answer, since according to what you say, Vista's Alt-Tab isn't smart enough to use the 256x256 icons, even if there's room for them in the display.

You might consider using, as an alternative to Vista's Alt-Tab, the free product Switcher. With it you can view your actual windows in three ways: dock, grid, and tile.

See a description of it in the following article :
A Better Alt-Tab Replacement Tool for Windows

Below is the grid-mode display:

image

share|improve this answer
    
Thanks. It would be nice if it's open source :) –  netvope Mar 16 '10 at 19:57
    
Why so? Software is software. –  user18151 Jun 19 '10 at 5:36
    
And free is free as in beer. –  harrymc Jun 19 '10 at 7:43
add comment

You might not have changed all the required settings.

From How to make Vista Taskbar Previews and ALT-TAB Thumbnails Bigger:

Save this to a .reg file and run as Administrator:

Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\AltTab]
"OverlayIconPx"=dword:00000023
"OverlayIconDXPx"=dword:00000000
"OverlayIconDYPx"=dword:00000000
"ThumbSpacingXPx"=dword:00000004
"ThumbSpacingYPx"=dword:00000004
"SideMarginPx"=dword:00000004
"BottomMarginPx"=dword:0000000a
"MinThumbSizePcent"=dword:00000064
"MinWidthPx"=dword:0000012c
"TopMarginPx"=dword:00000020
"MaxThumbSizePx"=dword:000000dc
"MaxIconSizePx"=dword:0000015e
"TextBottomPx"=dword:000001f4

I've also tightened up the borders and margins a bit, to make room for larger thumbnails. However, before importing this into your registry you must edit the MaxThumbSizePx to a size that works on your monitor first! The current value, above, is DC hex or 220 decimal, which works on my 1600 x 1200 primary monitor. The maximum row size is 7, so each row is 7 x 220 = 1540, right under the 1600 width.

share|improve this answer
    
I actually started off with all these keys, but I find most of them unnecessary (e.g. I don't want to tweak the margins), so I removed them. –  netvope Jan 18 '10 at 2:49
    
I haven't tried it, but the above combination is said to work. You might try it and see. You can export your current values to keep while experimenting. –  harrymc Jan 18 '10 at 7:01
    
They do work, but they don't address my question. –  netvope Mar 8 '10 at 2:39
    
@netvope: What do you mean? –  harrymc Mar 8 '10 at 6:50
    
My question is "How can I force Windows to load the HIGH-RES icons for the alt-tab thumbnail preview?". I have also clarified that "My problem concerns the ICON overlaid at the CORNER of the thumbnail". I have no problems making the thumbnails and the icons big with the registry entries. But LOW-RES icons look terrible when they are big. I want HIGH-RES icons so that they look good when they are big. Please read the question carefully. –  netvope Mar 8 '10 at 21:23
show 1 more comment

I don't know, but if you want a better app-switcher on Vista/7, try pressing Win-Tab. It shows the full window.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.