How to script to turn off mac window mirroring, - macos

So I have 150+ users who are using a mac mini, El Capitan.
I use deploy studio to make an image so I can clean out the junk every so often, on this image I have settings and such that I can regulate, I am not sure how to make it so the first time someone logs in, the windows are not mirrored, (everyone is using dual monitors). Is this possible?
I can make an Apple script to do it just fine, but that isn't acceptable in this case.
Question : How do I set the preference/setting of "mirror windows" to be automatically or always unchecked?

maybe this link could help your problem : https://discussions.apple.com/thread/2750766?tstart=0

The setting for whether a display is mirrored or not is controlled per display using the key "Mirrored" in this file:
/Library/Preferences/com.apple.windowserver.plist
However, that file contains a list of displays, each potentially with a unique identifier. You might be able to lay down the same file on multiple machines provided they all have the same monitor model, but I don't know for sure.

Related

Disable image preview in dialog box

In my Electron app, I am trying to use dialog.showOpenDialog() to allow users to choose the image file that they want to open. On Ubuntu 18.04, when they choose an image file, a preview of the image would appear on the right side like so:
https://i.stack.imgur.com/RG6Po.png
However, if the user chooses a file that is too large (typically 1GB+), my app would crashes, with the following being printed on the command line:
tcmalloc: large alloc 1073741824 bytes == 0x32f584ab4000 # 0x7fb5985b16cf
I tried disable thumbnail generation in the Search & Preview tab of the file manager but it didn't disable this right-hand-side preview in the dialog box.
My app works with very large raster files so being able to choose these image files is crucial. I have considered either installing a new file manager or moving my code to another OS, but I want to ask beforehand if there is any less drastic solution that I can take?
The previews are being added to the GtkFileChooserDialog by Electron itself, so changing your file manager or its settings won't have an effect. Changing OS would work, of course, as drastic as it is.
It does seem like Electron should offer an option for turning off previews among the platform-specific ones in dialog.showOpenDialog. At the minimum, it should enforce a reasonable cutoff on file sizes for previews.
To accomplish that, you'd have to patch Electron locally (and then ideally submit a PR). Whatever you decide to do, I don't see a bug reported about this in the Electron repo, so doing that could be helpful to anyone else who runs into the problem.

Clear Recent items in Preview Application of Mac OS X..?

Hello all,
Can anyone tell me how to clear the 'Recent items' list in Preview application of Mac OS X through code? Is there a terminal command that can do this?
Or is there any way to click on 'Clear Menu' in 'Open Recent' of the 'File' menu in Preview?
Alternatively, does someone know where Preview stores this information and how do to remove it?
Check out this image to see what I mean.
Ok, so none of the described methods on the websites I could find actually succeeded in getting rid of all the 'recent document' lists in all of my apps.
I feel the most common sense approach would be (for OSX 10.12 / Sierra):
First go to system settings > general and choose "none" in the recent file dropdown menu (my OSX is in another language so the exact terms might be different, but you should be able to see what I mean). / This will get rid of most, but not all recent-items in different apps.
Get familiar with Apple's 'defaults' command in terminal. Now, hunt for any lists you might still want to get rid off, e.g. none of the options mentioned in the answers already listed here helped to get rid of the recent-items list in Finders "GO" menu. I played around with the defaults command and found that: "write com.apple.finder "FXRecentFolders" '({})' && killall Finder" does the trick for me. Playing around I found similar solutions for many of the other apps that where still able to maintain a list of recent items.
Create a shell script containing the commands you found during step 2.
Schedule the script to be run automatically on a preset interval or action (e.g. log out). AND/OR create an alias in your shell's profile (or directly apply the script as a function inside it) so you can call it with a single command from your terminal. (for instance: I have created an alias to it, so when I now type "killrecent" in terminal, it empties all the recent-items lists I've been able to find.
Hope this will be of some help to others. Good luck!
open Preview ->- go to File ->- Open Recent ->- Clear Menu
You may try the approach outlined here, which is to run
defaults delete com.apple.Preview.LSSharedFileList RecentDocuments
in the Terminal (manually or through your app). However I tried this and it didn't work for me (OSX 10.11), since the Preview defaults file doesn't contain this entry.
You can use
defaults write com.apple.Preview NSRecentDocumentsLimit 0
which will hide all recently used items, but as soon as you set that number to anything greater than 0, they will show up again.
I also checked the ScriptingBridge Interface for Preview, but couldn't find anything useful. So unfortunately it looks like this is not possible.
with 10.11, there are at
~/Library/Application\ Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/com.apple.preview.sfl

How to make application autorun on Mac?

I want to make my application autorun, like using autorun.inf on Windows. I googled and there is one way for me to do that:
"On the Mac side there are many applications you can buy for creating a Finder window that looks a certain way but all these changes can be made within finder. You then will need to copy the DS_Store file to the CD and finder will automatically apply any changes that you have made.
Also using -hfs-openfolder will cause it to open automatically when inserted on the mac."
Can anyone tell me more clearly about that, or is there any other way?
Thanks so much.
According to this page, you should be able to do that with bless:
sudo bless --folder "/Volumes/discName" --openfolder "/Volumes/discName"
The man page confirms that, at least on 10.6.8. I don't have Lion in front of me right now.

xcode The document "..." could not be saved

I use xcode 3.2.4 on snow leopard. Today when I tried to save a file on my project I get an error message saying: The document "nameOfFile.m" could not be saved. I tried reinstalling xcode but no luck. The file can be edited with other editors and I see the same behavior on all my projects as well as newly created projects. Any ideas?
Simply by rebooting the computer the issue was fixed.
We were having this problem in a lab environment where user files are mounted via NFS.
The client machines are running OS X 10.6.7 and the file server is running Debian Linux.
After much grief and reading /var/log/syslog on the client machine I discovered it was a subtle file locking / race condition issue with the file system. Evidently, when editing files in a "bundle" (e.g. as in an Xcode project), the OS is using some form of "safe writes" which involves writing transient data atomically to ~/Library/Caches/TemporaryItems/ (which of course is on the NFS mounted system) -- there is a race here that requires proper file locking. We hope we have fixed the problem by changing the nfs_mount options
as described in Mounting NFS volumes in OS X
Not sure why but the temp files ended in a odd state. In "/private/var/folders" I simply removed all the folders and it cleared up the problem
cd /private/var/folders
sudo rm -fR *
Note: never do a "sudo rm" unless you really know what you are doing. It can cause irrecoverable damage
I restarted XCode (by a force-quit, not just closing it) and that fixed it for me.
Make sure you have you mouse focused on the code area and not the file in the file list.
Cleaning the project (Product > Clean), then force quitting Xcode (Command + Option + Escape, select Xcode, click Force Quit) solved the issue for me. I'm not sure if the clean was necessary, but that was what I did. Upon re-opening the project, I let Xcode index the project before doing anything, then did a Build, and all is well.
Force quiting Xcode for me worked. I would recommend the same.
Hey........... even i faced the same problem..... But got the answer......
steps:
reveal in folder the project.
select the file that is locked
select 'GEt Info'
deselect ie uncheck the label 'LOCKED' in the Info.
I just ran into the same problem, then I noticed I ran out of disk space. You can disable the warning that pops up when you run low on disk space (perhaps not a wise thing to do). I did that a few days ago and was puzzled for a moment when this message appeared. They could've just said "Disk full" or something instead of "cannot save". Anyway if anyone ever runs into this just free up some disk space.
You might be able to save in an external editor because its not also building your app which might use up the little remaining space. It might also be why it worked after rebooting (if OS X cleaned up some cached stuff on reboot) so it seems plausible.
Either that or your HDD might have just crashed.
tic....tic....tic.....
In my Case, the File which was saying document could not be saved was basically Shortcut/Allies of the file present at another place.
I don't know why it was not able to save if it was opened by shortcut/allies in xcode but by overwriting(Copy and Paste) the orignal files to that shortcut my problem was solved.
Regards
Umair Bhatti
1.Right click on that file
2.Go to Show in Finder .
3.Click on get info .
4.Goto Sharing & Permission
Everyone,username,Fetching & selection ----You can choose appropriate read write option.
I have face this issue many times. I followed below steps to fixed this.
1. Select file->Show in Finder
2. Copy those file and past different destination.
3. Remove those file from xCode (to selecting show in finder)
4. Then again add those files from other destination to actual location
5. Clean code and run the code.
Another possible reason is that the file you are trying to modify is an alias (i.e. a soft link).
You will have to modify the source file directly in this case.
Thanks #Wayne Cochran,
When I use Xcode to save it, I rebooted the machine several times, and all failed.
So I changed to Visual Studio Code to edit and save. Then it's OK.
Just change the file editor
This can happen when you are working with a network hard drive (or are on a cloud) and not connected to the network (connection lost)

Update desktop "show window contents while dragging" setting programatically

One of my programs seems to be changing the Display Properties > Appearance > Effects > Show window contents while dragging setting to off every few hours.
I'm not sure exactly which program, or when it happens. I have a number of programs that seem like likely culprits - wallpaper rotators, software for multiple monitors, multiple virual desktops and switching, and a few others.
I am just thinking to create a little batch script to run periodically and set the setting back to on.
Does anyone know how to do this in windows? I'm using xp pro sp3.
Thanks!
The best option is to do this programmatically using the supported API. i haven't tested this, but it should do the trick:
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS,
TRUE,
NULL,
SPIF_UPDATEINIFILE | SPIF_SENDCHANGE)
You can use SPI_GETDRAGFULLWINDOWS to see if the the bit has been flipped to avoid unnecessarily triggering a WM_SETTINGCHANGE.
You can use RegMon to find the program that keeps changing your settings. Maybe that's a better start than hacking around it.
There is a simple and effective solution to this problem. In Notepad type the following lines :
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Control Panel\Desktop] "DragFullWindows"="1"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VisualEffects\DragFullWindows] "CheckedValue"=dword:00000001 "UncheckedValue"=dword:00000001
Save the file as "Show Window Contents.reg" Double clicking this file and restarting will cure the problem permanently. Post a message if you find this useful.
Aravind Banerjee
It seems the registry setting which controls that preference is HKCU\Control Panel\Desktop\DragFullWindows. You can read more about it here. However, trying it on my own computer does not register the change right away, so a batch script won't do it. You'll probably have to write a program to manipulate it using SystemParametersInfo(). You can pass it the SPI_SETDRAGFULLWINDOWS parameter. Here's a page explaining it more. Here's a page showing how to call it, albeit not for the same parameter.
I suspect it's kept in the registry - maybe [HKEY_CURRENT_USER\Control Panel\Desktop] - "DragFullWindows"?
It would be easy to flip the registry setting back to "1" every hour or so with a batch file.

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