Transparent windows - bug?

HI Everyone,
today my imac at work did something quite extravagant - not sure if it's a bug or not? (I'd actually like to replicate this at will)
basically, while swapping back and forth through windows, everything became transparent but for chrome (finder, indesign and mail all transparent)
any idea?
thanks
david

after some digging it seems it shouldn't be possible without a third party software - which makes me all the more curious if anyone knows anything about this issue/"feature"

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[Solved] How to remove a transparent window on the desktop

I am using KDE 4.5.3-1.
$uname -a
Linux desktop 2.6.35-ARCH #1 SMP PREEMPT Sat Oct 30 21:22:26 CEST 2010 x86_64 Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz GenuineIntel GNU/Linux
There appears to be a transparent window on my desktop, as shown by the shadow outline in this snapshot:
http://individual.utoronto.ca/davidshih … pshot.jpeg
It appears with different wallpapers, and I can't seem to disable it. Right-clicking brings up the same context menu as outside the ghost window. Nothing in Desktop settings appear to control the appearance of this window. Restarting does not help.
I am not sure when it appeared...
-- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code --
Last edited by rWarrior (2010-12-23 04:33:58)

Known bug https://bugs.kde.org/show_bug.cgi?id=251537
Workaround: Try disabling shadows in desktop effects

Dare I say 'transparent window'

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I am OK with the C++ side, native-java and java-native etc, but not sure which C headers to use for my purposes, or infact where to find them. I have searched google quite a lot, and found many references to jniwrapper and other commercial solutions, but those people that do know how to do this seem very reluctant to share the secret.
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Thanks

hello...
that link didn't work for me. is that site still up and running?
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Here is another thread on similar issue
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Before I start tearing apart my system?
cheers.

Amagine,
Is it LCD or CRT?
Could be the monitor:
1. Try it on another system!
If all else fails.
2. Try going into ColorSync Utility and playing around with the color settings and see what happens.
Try changing the resolution and colors, also if there are multiple Hz settings try changing them and playing around with that.
3.Still there? Try reseating the video card. No dice with that, and the same deal on another system then it's the monitor. If it's LCD it's probably the monitor.
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Sorry, I thought that article had more detail. Now I look at it again it's rather less useful than I thought.
bitblt is copying pixels.
https://msdn.microsoft.com/en-us/library/aa452879.aspx
The way this would have to work ( afaik ) is you copy some proportion of the bits out the rectangle behind your window.
If you want low opacity rather than completely transparent you would merge them with whatever colour you want the background to look a bit like.
You'd be painting a picture onto the background in the onpaint.
If your user moves the "transparent" window then you need to copy the background from the new location.
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Hi all,
My HTML/JS AIR app uses alpha-blended PNGs to apply a pretty window decoration on the desktop. On Mac and Windows, it looks great and works exactly how I would like. On Linux though (Ubuntu on VirtualBox) the transparency does not work, and I've got a big black border where the alpha blending should be.
Is this expected on Linux, and I should wrap a normal window around instead, or should I expect to see alpha blended windows behave and look the same as on Mac/Windows?
Cheers!
Garry

Hi Garry
To be able to view transparent windows you need to enable desktop effects (this is not a limitation of AIR but of display managers). Unfortunately desktop effects cannot be enabled on virtual machines, you can only do that on a physical machine.
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Sundeep

My firefoz opens but opens a transparent window that only has the close,minimize and maximize buttons.

So my firefox has been running well but when i updated my computer, it stopped working. when i double click the icon, it opens a blank transparent window with only the maximize, minimize and close buttons. you cannot even tell its firefox. it does not display any error messages and installing again does not work.
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[[Troubleshoot Firefox issues caused by malware]]
[[Update Firefox to the latest version]]
https://www.mozilla.org/plugincheck/

How can I capture a semi transparent window?

Hello all
I am trying to grab an image of a semi transparent window into a bitmap. I have tried using both CopyFromScreen and BitBlt using the window handle but in both cases all I get is the image from behind the window I want to catch, it's like the semi transparent
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your transparent form. Then it will set the forms opacity back to 1.0 so you can see that the transparent form was captured in the image.
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Imports System.Runtime.InteropServices
Public Class Form1
Private Const CAPTUREBLT As Integer = &H40000000
Private Const SRCCOPY As Integer = &HCC0020
<DllImport("gdi32.dll", EntryPoint:="BitBlt")> _
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End Function
<DllImport("user32.dll", EntryPoint:="GetDC")> Private Shared Function GetDC(ByVal hWnd As System.IntPtr) As System.IntPtr
End Function
<DllImport("user32.dll", EntryPoint:="ReleaseDC")> Private Shared Function ReleaseDC(ByVal hWnd As System.IntPtr, ByVal hDC As System.IntPtr) As Integer
End Function
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'set this form so it is partialy transparen. Just to show it was captured for this example
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PictureBox1.Image = CaptureScreenImage(CaptureRectangle)
'just so you can see the image better set the form`s opacity back to 1.0
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End Sub
Private Function CaptureScreenImage(ByVal rect As Rectangle) As Bitmap
Dim scrnHdc As IntPtr = GetDC(IntPtr.Zero)
Dim bmp As New Bitmap(rect.Width, rect.Height)
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grx.ReleaseHdc(grxHdc)
ReleaseDC(IntPtr.Zero, scrnHdc)
End Using
Return bmp
End Function
End Class
If you say it can`t be done then i`ll try it

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Greetings,
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LGK

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As for the finder window bug. Its still there after 10.7.3 and 9.1.6. It will be there forever along with all the other bugs as it has for years now. Remember, you don't have to live with it. Lets not be lazy and start packing our bags. Its time to go.
LGK

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Anybody having trouble pasting texture into the opacity masks box in the transparency window?

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[svn:fx-4.x] 15030: AIR Spark Window bugs when layoutDirection="rtl".

Revision: 15030
Revision: 15030
Author:   [email protected]
Date:     2010-03-25 11:49:00 -0700 (Thu, 25 Mar 2010)
Log Message:
AIR Spark Window bugs when layoutDirection="rtl". On Windows only, an empty window when created, didn't maximize or resize correctly. This class maintains its width/height in bounds rather than in the super class' _width and _height variables. Need to call setActualSize() whenever bounds is set so that the layoutWidth gets set correctly if this component is mirroring.
Fix an RTE in TitleWindow that I stumbled upon. Can not access the nativeWindow displayState if the window is closed.
QE notes:
Doc notes: None
Bugs: SDK-25978, SDK-25827, SDK-25825
Reviewed By: Jason
Tests run: checkintests
Is noteworthy for integration: No
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-25978
    http://bugs.adobe.com/jira/browse/SDK-25827
    http://bugs.adobe.com/jira/browse/SDK-25825
Modified Paths:
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    flex/sdk/branches/4.x/frameworks/projects/airspark/src/spark/components/windowClasses/Tit leBar.as

Stope
Mailing me ***
Sent from my I phone

ITunes opens in a transparent window on SSD in Windows 8.

Ever since I installed my Samsung SSD I have not been able to open iTunes correctly. It opens as a transparent window with only the searchbox showing up in white.
I have tried reinstalling, opened as administrator, used a different download location? Your help would be greatly appreciated!!!!

Here is what it looks like

Transparent windows - bug?

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