Dare I say 'transparent window'

Hi, like many people I would like to be able to create transparent windows, dialogs etc, but a little lost, well actullay a little less lost since yesterday!
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.
Can anybody provide a bit of direction?
Thanks

hello...
that link didn't work for me. is that site still up and running?
is it possible to make a transparent window in java so that another completely different application can be seen underneath?
thanks...

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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
window is completely invisible to both capture methods. Is there any way I can capture the window I want?
Thanks
Rich

Here is an example. You can try it in a new form project with 1 Button and 1 PictureBox added to the form. As i said, it is just an example so, when it is run the form will be partialy transparent. Click the button and it will capture the whole screen including
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.
You will need to set it up to be used in a practical way. This is just a quick test example.
Imports System.Runtime.InteropServices
Public Class Form1
Private Const CAPTUREBLT As Integer = &H40000000
Private Const SRCCOPY As Integer = &HCC0020
<DllImport("gdi32.dll", EntryPoint:="BitBlt")> _
Private Shared Function BitBlt(ByVal hdcDest As IntPtr, ByVal nXDest As Integer, ByVal nYDest As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer, ByVal hdcSrc As IntPtr, ByVal nXSrc As Integer, ByVal nYSrc As Integer, ByVal dwRop As UInteger) As <MarshalAs(UnmanagedType.Bool)> Boolean
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
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'set this form so it is partialy transparen. Just to show it was captured for this example
Me.Opacity = 0.5
PictureBox1.SizeMode = PictureBoxSizeMode.Zoom
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'if the picturebox has an Image the Dispose it first
If PictureBox1.Image IsNot Nothing Then PictureBox1.Image.Dispose()
'define the rectangle area of the screen to capture (whole screen in this case)
Dim CaptureRectangle As Rectangle = Screen.PrimaryScreen.Bounds
'Assign the new image captured from the screen to the picturebox image
PictureBox1.Image = CaptureScreenImage(CaptureRectangle)
'just so you can see the image better set the form`s opacity back to 1.0
Me.Opacity = 1.0
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)
Using grx As Graphics = Graphics.FromImage(bmp)
Dim grxHdc As IntPtr = grx.GetHdc()
BitBlt(grxHdc, 0, 0, rect.Width, rect.Height, scrnHdc, rect.X, rect.Y, SRCCOPY Or CAPTUREBLT)
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

Gray transparent "window shade" freeze

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Note: I have the Intel processor and use CS2 versions of Adobe products. I heard this wasn't a good combination.
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Hello Cat
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Take Care
Regards.

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http://support.microsoft.com/mats/Program_Install_and_Uninstall
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Hello Fred5960
If you are having issues with connecting to the internet then check out the articles below to troubleshoot your issue.
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Hi,
apart from the MacBook Air this feature is of no use for other Macs right now.
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Thanks,
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Preview - Outline only appears?
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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.
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Do it in whatever order is easier for you. I just felt like numbering them.
-Eric

Really Transparent Windows...

I saw lots of examples to fake a transparent window, thats fine for me... but what i couldn?t find out is if there is any way to make the "transparent" parts NOT clickable...
when the user clicks the transparent part of the frame it passes this event to whatever is behind it.
Could someone help me!?

I just want to create a Frame that isn�t rectangular.. in order to have a circular Frame for example... I can make the frame transparent and make it have the appearence of a circular Frame, but when the user clicks the "invisible" parts of the frame (the ones that aren�t inside the circle), the Frame receives the event, and not the things that are behind it. Like, if i open the notepad and then my program over it, i see just the circle over the notepad, but when i click the parts of the frame i made transparent using Robot..., the focus goes to the Frame, and not to the notepad...
i really apreciate your replies.. if no one knows how to solve it.. ok.. it happes :)...

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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.
If it were me I'd push back on the requirement.
Hope that helps.
Recent Technet articles:
Property List Editing;
Dynamic XAML

Transparent windows on Linux

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.
-Thanks
Sundeep

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what is this and how do i fix it?

hello nachoz88, [https://support.mozilla.org/en-US/questions/940393#answer-377118 from another user] we found out that this might be related to malware active on your pc. please close all firefox windows and try [[Troubleshoot Firefox issues using Safe Mode|running firefox in safemode]] (by pressing the shift key while you're starting it). in firefox safemode go to firefox > addons > extensions and remove the entry named "Codec v1.0" or any other addons that look suspicious & you have not installed intentionally. afterwards see if you can run firefox normally again...
please also do an in-depth scan of your system with the security software already in place and/or a different tool like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] & keep firefox and your plugins up-to-date in order to stay safe on the web.
[[Troubleshoot Firefox issues caused by malware]]
[[Update Firefox to the latest version]]
https://www.mozilla.org/plugincheck/

After purchasing the Photoshop cs6 update for my Mac, the download page says for "Windows". Will this still work? How do I get the right download without purchasing again

After purchasing the Photoshop cs6 update for my Mac, the download page says for "Windows". Will this still work? How do I get the right download without purchasing again?

no.
you need the update for a mac, not windows.
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Dare I say 'transparent window'

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