I am trying to use the Windows CCD APIs (SetDisplayConfig) to enable a secondary monitor, but haven't figured out how to do it. I've been successful at re-positioning and disabling displays, but haven't found any examples of how to enable a previously disabled monitor.
Does anybody have experience with this? I've found other questions showing how to do it with ChangeDisplaySettingsEx, but I'm trying to use SetDisplayConfig.
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I am developing a simple application in Cocoa, and I want to detect whether any application is running in full screen mode. Is this possible?
Through runningApplications API, I can get various informations but there is no specific property related to full screen mode. Does any one know how to detect it? Is there any carbon event or API for this?
I ran into this in the spring and spent forever trying to get it to work. I ended up packaging my code up into a little GitHub project, but I completely forgot to share it here.
https://github.com/shinypb/FullScreenDetector
Hope this is useful for someone.
Anyways after trying out so many options and digging into the NSWorkspace i have found way through which we can achieve this their is notification
"NSWorkspaceActiveSpaceDidChangeNotification"
Apple doc says "Posted when a Spaces change has occurred." so by using we can register for it. along with this we need to use the NSWindow's property "isOnActiveSpace" , so by this we can detect when application enters full screen mode and exits from it.
You want to key-value observe -[NSApplication currentSystemPresentationOptions]. When the active app is in full-screen mode, that property will include NSApplicationPresentationFullScreen.
When I'm using my laptop, I use 3 displays:
The laptop display
A second monitor (connected through VGA)
A TV (connected through HDMI)
My videocard doesn't support 3 monitors, so I'm constantly switching from 2 to 3: when I'm on the computer, I use the 2nd monitor, and when I want to watch some movies, etc. I use the 3rd.
I currently have to go to Screen Resolution, select the monitor that is not in use, and choose Extend desktop to this display.
Is there a way I can automate it?
Is there any command-line tool, or any Windows API that allows doing it?
Edit:
Display Changer seems to do what I need, but the problem is that it only detects the working monitors. The 3rd monitor (which isn't currently in use) isn't detected, so I can't attach it.
A bit of RE on DisplaySwitch.exe shows that it calls
SetDisplayConfig(0, NULL, NULL, NULL, 0x888)
to set it to Extended on my computer.
From there, a little digging around got me to the SetDisplayConfig documentation obviously and also this SO page with some example code that queries your current display state and adds the actual flags to change them if you want to do so.
I answered a similar question with suggestion to try UltraMon or use their SDK, but you can also hit the Win32 API directly with ChangeDisplaySettingsEx. Another user, Sai, gave an reference to an example showing use of the function.
I have 3 monitors, but I don't need them all turned on all the time. I can just shut them down with power button, but I want to use their standby mode, like Windows does when we let PC idle for a while - it shuts down monitors, HDD, etc.
But of course, I wanna keep using PC and let just that monitor on standby. Others must remain on and that one doesn't wake up even with me using PC.
Is it possible to do that? It would be great to have a shortcut like Winkey+1, 2, 3 etc to shut down and wake up each monitor.
An existing app with this feature is not likely to exist, but is there a Windows API function that can control monitor state, for each monitor in a MultiMonitor system?
The display control panel applet calls SetDisplayConfig to start or stop forced projection on a particular target
You can probably use MS Detours or some other API hooking tool to inspect the usage pattern of the API while using the applet to adjust display settings.
You'll want to try Display Fusion. You should be able to do what you're asking for using Monitor configurations.
I know I'm late on this but use DDC to control your display. You can easily create hotkeys that send a command via DDC to the display to turn-off. This would be equivalent to turning off the display using the button. Works like a charm for me. The only trick is that DDC command specs vary across monitor manufacturers but its not hard to find the right codes to send with the help of google.
Ready made tools also exist for this; search for anything that is related to DDC or EDID and you should find.
Be aware though that this does not remove the display from Windows which means that apps may find their way onto displays that are off and you will be looking for them.
Is there any way switch on/off flight mode programmatically in Windows Phone 7.5. What I want to do is create background task which will be check time and switch on/off flight mode.
Thanks in advance.
No, this functionality is not available.
It was a design principle behind the platform that applications should not be able to do things without the user knowing it.
If such functionality was available then it would be possible for an app (either deliberately or accidentally-though a bug) to get the devices state in a setting other than what they user may expect. In such a scenario users will typically blaim the phone/platform for what has happened, not a misbehaving application.
Though you cannot programatically do it (as others have mentioned), you can send the user directly to the proper page in the settings panel and allow them to do it. Here's an example of using the ConnectionsSettingsTask:
http://msdn.microsoft.com/en-us/library/hh394011(v=VS.92).aspx
You would want to set the ConnectionSettingsType property:
http://msdn.microsoft.com/en-us/library/microsoft.phone.tasks.connectionsettingstask.connectionsettingstype(v=VS.92).aspx
To 'AirplaneMode'.
I want to get Keyboard Input on OSX using c++ without using Cocoa, deprecated Carbon UPP handlers and if possible without using IOHID since that's alot of extra work.
I allready implemented a simple mouse class using quartz event taps and it works like a charm and now I'd like to use them to implement a keyboard class. Anyways as the reference states under CGEventTapCreate:
http://developer.apple.com/library/mac/#documentation/Carbon/Reference/QuartzEventServicesRef/Reference/reference.html
you can only access key events if one of the following is true:
The current process is running as the root user.
Access for assistive devices is enabled. In Mac OS X v10.4, you can
enable this feature using System Preferences, Universal Access
panel, Keyboard view.
that is a very serious limitation since I also want my application to work without any weird settings. Is there any way to work around this? If not, is there any alternative to using Taps in Carbon?
Thanks!
The easiest way is to use the semi-deprecated Carbon function RegisterEventHotKey, see this SO Q&A, for example.
If not, you need to live with that restriction. The restriction is there to prevent a bad person to install keylogger behind the scenes. You need to ask the user to open the preferences, type the admin password etc.
You could try to use AXMakeProcessTrusted. This is supposed to be the same as Access for assistive devices on a per process basis.