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Vista's live thumnail view

 
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skrommel



Joined: 30 Jul 2004
Posts: 181
PostPosted: Sun Aug 03, 2008 11:48 pm    Post subject: Vista's live thumnail view Reply with quote
Smile Vista, anyone?

I finally found the solution to my own question in the Help section, using two fantastic tools:
heresy's EasyWinApi at http://www.autohotkey.com/forum/viewtopic.php?t=33464 and
Lexikos' StructParser at http://www.autohotkey.com/forum/viewtopic.php?t=27644.

The code makes a gui showing the content of the active window, just like Vista's taskbar thumnails

Code:
;VistaLiveThumbnailView.ahk
;Skrommel @ 2008

#SingleInstance,Force
#NoEnv
DetectHiddenWindows,On

zoom=2

WinGet,source,Id,A
Gui,Show,w300 h300
Gui,+LastFound
WinGet,target,Id,A
DetectHiddenWindows,On

VarSetCapacity(thumbnail,4,0)
hr1:=DllCall("dwmapi.dll\DwmRegisterThumbnail","UInt",target,"UInt",source,"UInt",&thumbnail)
thumbnail:=NumGet(thumbnail)

/*
DWM_TNP_RECTDESTINATION (0x00000001)
Indicates a value for rcDestination has been specified.
DWM_TNP_RECTSOURCE (0x00000002)
Indicates a value for rcSource has been specified.
DWM_TNP_OPACITY (0x00000004)
Indicates a value for opacity has been specified.
DWM_TNP_VISIBLE (0x00000008)
Indicates a value for fVisible has been specified.
DWM_TNP_SOURCECLIENTAREAONLY (0x00000010)
Indicates a value for fSourceClientAreaOnly has been specified.
*/

dwFlags:=0X1 | 0x2 | 0x10
opacity:=150
fVisible:=1
fSourceClientAreaOnly:=1

WinGetPos,wx,wy,ww,wh,ahk_id %target%

VarSetCapacity(dskThumbProps,45,0)
;struct _DWM_THUMBNAIL_PROPERTIES
NumPut(dwFlags,dskThumbProps,0,"UInt")
NumPut(0,dskThumbProps,4,"Int")
NumPut(0,dskThumbProps,8,"Int")
NumPut(ww,dskThumbProps,12,"Int")
NumPut(wh,dskThumbProps,16,"Int")
NumPut(0,dskThumbProps,20,"Int")
NumPut(0,dskThumbProps,24,"Int")
NumPut(ww/zoom,dskThumbProps,28,"Int")
NumPut(wh/zoom,dskThumbProps,32,"Int")
NumPut(opacity,dskThumbProps,36,"UChar")
NumPut(fVisible,dskThumbProps,37,"Int")
NumPut(fSourceClientAreaOnly,dskThumbProps,41,"Int")
hr2:=DllCall("dwmapi.dll\DwmUpdateThumbnailProperties","UInt",thumbnail,"UInt",&dskThumbProps)
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zanthor



Joined: 11 Jul 2007
Posts: 10
PostPosted: Sat Sep 13, 2008 5:45 pm    Post subject: Reply with quote
Would it be possible to make this monitor 5 applications at the same time? I have 5 windows 4 of which won't necessarily be focus'd at any given time that I'd like to keep status on.

Edit: I just ran this and it brings up a lovely window, but the contents never change from just a blue gradient... I'm wondering if I'm doing something wrong here...
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corrupt



Joined: 29 Dec 2004
Posts: 2436
PostPosted: Sat Sep 13, 2008 7:20 pm    Post subject: Reply with quote
blank window... (XP Pro SP3)
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wygd



Joined: 04 Nov 2007
Posts: 8
PostPosted: Sun Sep 14, 2008 6:46 am    Post subject: Reply with quote
nothing happen.
just a blank window.
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Serenity



Joined: 07 Nov 2004
Posts: 1276
PostPosted: Sun Sep 14, 2008 12:02 pm    Post subject: Reply with quote
I think this requires Vista as it uses DWMAPI.DLL.
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Lexikos



Joined: 17 Oct 2006
Posts: 2737
Location: Australia, Qld
PostPosted: Sun Sep 14, 2008 12:06 pm    Post subject: Reply with quote
As the title and first line of this thread suggest, it does indeed require Vista. Aero (i.e. desktop composition) must also be enabled for it to work.

To answer zanthor's question, there is no documented limit to the number of thumbnails that you may create.
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corrupt



Joined: 29 Dec 2004
Posts: 2436
PostPosted: Sun Sep 14, 2008 3:01 pm    Post subject: Reply with quote
skrommel wrote:
The code makes a gui showing the content of the active window, just like Vista's taskbar thumnails

Lexikos wrote:
As the title and first line of this thread suggest, it does indeed require Vista. Aero (i.e. desktop composition) must also be enabled for it to work.
The title didn't suggest that to me. I had expected to see functionality similar to Vista's live thumbnail view. Thanks for clarifying Smile .
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