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Is there a way to make the background of Notepad++ text editor transparent like Eclipse?

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Perhaps, there is a plugin which does this job.

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Transparent background, while keeping the foreground (text) opaque? – iglvzx May 9 '12 at 15:46
Yes @iglvzx. I heard that Eclipse has such capability but I don't know, whether this feature is supported by editor or some other environment (like KDE). – user1050135 May 9 '12 at 17:21
Eclipse does have this ability. A custom plugin would have to be written for Notepad++ so that only the background, not the text is transparent. I'm guessing there's no point if the whole window is made transparent as this defeats the purpose of the entire editor window. CChris mentions in this SourceForge forum that Notepad++ dockable windows can't be made transparent, and that third party plugins have to be used. – prrao May 9 '12 at 17:33

Use Notepad++ plugin TopMost and select the option 'Make my window transparent'.

My experience with this plugin has been very limited and I came to know about it when I had the exact opposite problem with my Notepad++: my Notepad++ window became unexpectedly transparent. I was able to remove the transparency by unflagging the 'Make my window transparent' option from the Plugin->TopMost menu in NotePad++.

This is the Plugin description that Notepad++ provides:

TopMost allows to set the main Notepad++ window as a topmost window so it can stay on top of other windows even when it is not active. This plugin sync with Notepad++ own stay on top functionality and allows to remember the setting between restarts as well as to show a toolbar button. Author: Franco Stellari

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I am starting to regret I decided to address this question that was buried for more than 3 years.. :| I am a user that experienced the opposite problem and managed to trace it to the TopMost plugin 'Make my window transparent' option. In good faith, I posted the answer which now is marked -1, meaning that users (including @user1050135) are more likely to read a wrong answer than a correct one.. an example of adverse selection, to say the least.. – user1232551 Oct 24 '15 at 21:20
+1 for updating the answer :) – DavidPostill Oct 24 '15 at 21:29
Great, I suggest to give it +2, so that users see this answer before they read the Win_Trans advertising.. ;) – user1232551 Oct 25 '15 at 1:32
I can't upvote more than once :/ You will just have to be patient and hope others upvote your answer. – DavidPostill Oct 25 '15 at 1:33
That's unfortunate. Thank you for replying. – user1232551 Oct 25 '15 at 5:58

I wrote a program to make any window transparent. It will also make the menu bar, tool bar, etc. transparent so it may not be exactly what you need.

It runs in the background and is activated by using shift control 2 for 20% visibility up to shift control 9 for 90% visibility. shift control 0 goes back to full visibility.

The program is written in AutoIt. You can download the source and customize it as needed. AutoIt compiles programs to .exe in such a way that no dependencies are needed, such as DLLs or .NET.

Win_Trans on GitHub.

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As discussed in the comments above, this is not the exact solution being sought. – iglvzx May 9 '12 at 19:11
Thanks @jftuga. I can try to change your AutoIt code. But I am not expert in it and so it is very difficult for me. It would be great if you can change your code to make the text/toolbar non transparent – user1050135 May 10 '12 at 18:17

It isn't a plugin for Notepad++ but there is a simple way to get transparent applications such as Notepad++ if you have an Nvidia graphics card that supports nview.

You can set system wide or application specific transparency settings easily. Simply enable nview, then right click on the top bar on any window, select nView options, Transparent.

Here is a clear example of Notepad++ transparent example of notepad++ transparency in Windows 8

I realise this is hardware specific solution, but it is really useful and simple if do you have the right card. I know for sure it works on XPx86, Vistax64, Windows7x86 and Windows8x64 because I've used it for years on those platforms without any issues.

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I think you are looking for Peek Through. Which makes any Windows application transparent. It's not a Notepad++ plugin, but I think It works well.

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