I've searched for it ,but I can't find the answer.
what I found is that how to keep the screen alive.
I wanna try to write the uwp that
when I click a button ,the screen will be turned off.
is there any function?
thank for any reply!
The answer is NO. You cannot turn off the screen from your app.
Microsoft will not allow application to do so. The API won't support this. Even if you did it with some hacks such app will be removed from store.
There's an answer about your question in StackOverFlow:
Microsoft certification will not allow application to do so, even
though if your able to do with some hacks. You cant turn off the
screen from your application. This type of app cannot be made for
Windows Phone, the API's do not exist, and if someone found a
workaround it would be removed from the store. Unfortunately non of
the developers have developed such app for windows
Related
I'm developing a Windows 10 Universal app (UWP).
Is it possible to set application as TopMost (always on top)? Like WPF or Winforms (TopMost property).
Thanks
A feature called CompactOverlay mode was added in the Creators Update that supports this type of functionality. When an app window enters compact overlay mode it’ll be shown above other windows so it won’t get blocked. This allows users to continue to keep an eye on your app's content even when they are working with something else. The canonical example of an app taking advantage of this feature is a media player or a video chat app.
A blog post describing the feature can be found here
https://blogs.msdn.microsoft.com/universal-windows-app-model/2017/02/11/compactoverlay-mode-aka-picture-in-picture/
Short answer is no, there is no way as of today to make the application modal.
There is a petition going around asking for this functionality, which was requested last December but given the amount of votes it got (35 at the time this answer was written), it doesn't look like it will be taken into consideration anytime soon.
As mentioned in the comments, this functionality would be PC only so even if it was added, my assumption would be that it wouldn't work outside of the PC mode (so no tablet, mobile or surface family device support).
It's not possible UWP apps have some restrictions compared with WPF of Win32 apps(classic apps).
With uwp apps you need enable some capabilities to do something special in your app as you can see in the link uwp apps need ask for permission or they can't access or modify files directly.
https://msdn.microsoft.com/en-us/library/windows/apps/mt270968.aspx
Best Regards
I'm developing a Windows 10 Universal app (UWP).
Is it possible to set application as TopMost (always on top)? Like WPF or Winforms (TopMost property).
Thanks
A feature called CompactOverlay mode was added in the Creators Update that supports this type of functionality. When an app window enters compact overlay mode it’ll be shown above other windows so it won’t get blocked. This allows users to continue to keep an eye on your app's content even when they are working with something else. The canonical example of an app taking advantage of this feature is a media player or a video chat app.
A blog post describing the feature can be found here
https://blogs.msdn.microsoft.com/universal-windows-app-model/2017/02/11/compactoverlay-mode-aka-picture-in-picture/
Short answer is no, there is no way as of today to make the application modal.
There is a petition going around asking for this functionality, which was requested last December but given the amount of votes it got (35 at the time this answer was written), it doesn't look like it will be taken into consideration anytime soon.
As mentioned in the comments, this functionality would be PC only so even if it was added, my assumption would be that it wouldn't work outside of the PC mode (so no tablet, mobile or surface family device support).
It's not possible UWP apps have some restrictions compared with WPF of Win32 apps(classic apps).
With uwp apps you need enable some capabilities to do something special in your app as you can see in the link uwp apps need ask for permission or they can't access or modify files directly.
https://msdn.microsoft.com/en-us/library/windows/apps/mt270968.aspx
Best Regards
I've made an app for the Windows desktop and also created it for the modern (metro) interface in Windows 8.1. I wanted to group them under the same start tile and have a setting that allowed the user to open the app in the chosen mode by clicking the start tile. I got this idea from Chrome, which has both modes referenced by the same tile in the start menu or the link on the taskbar. I thought that maybe when the setting was changed I would delete the current one and replace it with one that referenced the other mode, but positioning is a problem, as a new tile always appears at the far right of the start screen. How would I resize the tile correctly and how would I delete and replace a link on the taskbar? I am using VB right now, but I can write C# and C++ so feel free to post code or links to code that are written in these languages.
If you have any suggestions, please post a reply or a ask a question in the comments.
I also should note that I prefer to use native libraries only and do not like using third-party dlls.
Thanks in advance for the help.
P.S. I've already tried Google.
I've figured it out!
The best way to do this is to create two registry keys referencing the two interfaces but make both the desktop and modern version not have a start tile! Then create a third app that has a tile and make it open the files, check for the active interface, and send the data to that interface with the file as a param.
Thanks for everyone's help, though :)
Ok, I have a question to which, despite my best efforts, I have not been able to solve. I searched the internet, and this is one of those that is particularly difficult to search for, but it seems that no user of Windows 8.1 nor any developers developing for Windows 8.1 has posted to any website asking how to do this (I could be wrong, of course).
What I am trying to do is make a Windows Store app targeting Windows 8.1, that takes advantage of multiple Windows. To see what I mean, open up metro ie, right click on a tab, and click "open in new window." This is also in the mail app, where you can open a single message in another window, which behaves like a separate app, and can be snapped like so. It's a new feature of the Windows 8.1 OS.
But I can't for the life of me figure out how to do it in C# and XAML. Does anyone know how? Thanks.
Alex
There are new APIs in Windows.UI.ViewManagement, namely the ApplicationViewSwitcher and ProjectionManager classes. The former is for working with multiple independent views that the user can arrange side by side on whatever monitors they have, which is what IE and Mail use; the latter is for working with multiple monitors.
See the Application Views sample along with the Projection sample for working both scenarios in code.
Might be bit late with my answer, nevertheless I had your similar apprehensions about the "Dismal Support Refs" for this subject, when I first began searching the topic. However I have been able to overcome this and use the feature in my apps. There are some good refs available; The Windows Dev Centre has a Quickstart ie "Quiskstart Creating Multiple Windows", a Good guide is the "MultipleViews" Sample, With the following providing additional support.
1) "Be two places at once using multiple windows" at
https://blogs.windows.com/buildingapps/2014/01/09/be-two-places-at-once-using-multiple-windows/#pBHiQtDSPFrCA7Gv.97
2) "MultipleViews for Windows 8.1 apps" (parts 1-3)
http://www.kraigbrockschmidt.com/2013/11/21/multiple-views-creating-view/
BQ at WATERVIEW
Is there a way to make Windows Mobile not use the main phone app? I have my own phone app that I want to handle phone transactions for a business device.
My app works fine (detects the call and can hang up), but the main phone app still wants to allow the user to answer a call normally. I can try to hide the incoming call window or programmatically press the ignore key, but that is a bit clunky.
Basically, I need a way to make the built in phone app not know about incoming calls.
Any advice would be appreciated!
In case it matters I am using a Symbol MC70 running Windows Mobile 5.
Thanks!
EDIT: Thanks to djhowell's answer to this question I now know that the offending app is cprog.exe. But apparently it is hard to kill because services.exe keeps bringing it back.
First of all, you should not do it. Replacing system dialer will create you more troubles than you can expect.
If you still want to do it, there is no nice way to do it, even if you opt to use RIL directly. So, there is a trick in which you create a dummy cprog.exe (which does absolutely nothing), and put in the root folder . After the phone boots, that program will be started instead of the native one that is located in the \Windows folder. Then no program will be listening for incoming calls.
I would recommend asking Symbol (actually Motorola), they may have insight into your problem. I work with MC3090's and they were helpful before.