How to get Image Account of user currently logged on Windows? - c#

Searching on the web I found this code UWP, to get the image but I'm not be able to include namespace Windows.Storage in WPF. I tried to include all possible references but doesn't work. I would have a solution WPF to include Windows.Storage(if possible) or simply another way to implement code to get image
StorageFile image = UserInformation.GetAccountPicture(AccountPictureKind.SmallImage) as StorageFile;
if (image != null)
{
rootPage.NotifyUser("SmallImage path = " + image.Path, NotifyType.StatusMessage);
}
else
{
rootPage.NotifyUser("Small Account Picture is not available", NotifyType.StatusMessage);
mediaPlayer.Visibility = Visibility.Collapsed;
smallImage.Visibility = Visibility.Collapsed;
largeImage.Visibility = Visibility.Collapsed;
}

The Windows.​System.​User​Profile namespace is for UWP app development and does not apply to WPF.
You may be able to use it if you package (convert) your app to UWP: https://learn.microsoft.com/sv-se/windows/uwp/porting/desktop-to-uwp-supported-api#apis-supported-in-both-converted-apps-and-desktop-applications. Note that the UserInformation class is not supported on Windows 10 or later. Instead, you should use the User class.
In a .NET application, you could try to search the C:\Users\<user>\AppData\Roaming\Microsoft\Windows\Account Pictures folder for the latest modified file:
How to find the most recent file in a directory using .NET, and without looping?

Based on this answer if you take a look here
As long as you have the currently logged in username, you should be able to access it. This is the case for Win OS 7 at least, I don't know which OS you're working with.

Related

Using Visual Studio, A Windows Forms(. Net Framework) template how to change this POST Description software to make what i will say there?

The Template is Using Windows C# and Dekstop the software i did is in this code; that is located at github in this repository. https://github.com/afjkrtrtr/ReturnValuesFromUserControl.git;
the code that makes the actions in the software is:
var username = textboxUsername.Text.Trim();
var password = textboxPassword.Text.Trim();
if(username.Equals("abc") && password.Equals("def"))
{
MessageBox.Show("Success");
}
else
{
MessageBox.Show("Failed");
}
}
}
}
what i wan is that the software instead of making that if the user is:"abc " and password: "def" when you fill the login interface and hit login button there appears a pop up windows saying:"sucess" ; instead it says: "failed"; how can i change this application to make that if you reproduce an audio that reproduce the work interviews for the different project of a company called: new Horizonts; the interview audio file is downloadable in this link: https://onedrive.live.com/download?cid=545A361126072FD2&resid=545A361126072FD2%218411&authkey=AA_412lehx8TTMc there appear the next information:RInterview Summary (maximum 100 characters minimum 25), interview date, place, interviewee, interviewer.?
i try looking how to Return Value from User Control After User Action in Windows Forms and it was imposible to me to find even how to Return Value from User Control After a programmed to make Sound in Windows Forms so it was imposible to me to see how to make a sound and in consequence od the specific actions i need to program that happens after the sound is played

UIAutomation throws AccessViolationException on Windows 11

The issue:
We have an application written in C# that uses UIAutomation to get the current text (either selected or the word behind the carret) in other applications (Word, OpenOffice, Notepad, etc.).
All is working great on Windows 10, even up to 21H2, last update check done today.
But we had several clients informing us that the application is closing abruptly on Windows 11.
After some debugging I've seen some System.AccessViolationException thrown when trying to use the TextPatternRange.GetText() method:
System.AccessViolationException: 'Attempted to read or write protected memory. This is often an indication that other memory is corrupt.'
What we've tried so far:
Setting uiaccess=true in manifest and signing the app : as mentionned here https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/350ceab8-436b-4ef1-8512-3fee4b470c0a/problem-with-manifest-and-uiaccess-set-to-true?forum=windowsgeneraldevelopmentissues => no changes (app is in C:\Program Files\
In addition to the above, I did try to set the level to "requireAdministrator" in the manifest, no changes either
As I've seen that it may come from a bug in Windows 11 (https://forum.emclient.com/t/emclient-9-0-1317-0-up-to-9-0-1361-0-password-correction-crashes-the-app/79904), I tried to install the 22H2 Preview release, still no changes.
Reproductible example
In order to be able to isolate the issue (and check it was not something else in our app that was causing the exception) I quickly made the following test (based on : How to get selected text of currently focused window? validated answer)
private void btnRefresh_Click(object sender, RoutedEventArgs e)
{
var p = Process.GetProcessesByName("notepad").FirstOrDefault();
var root = AutomationElement.FromHandle(p.MainWindowHandle);
var documentControl = new
PropertyCondition(AutomationElement.ControlTypeProperty,
ControlType.Document);
var textPatternAvailable = new PropertyCondition(AutomationElement.IsTextPatternAvailableProperty, true);
var findControl = new AndCondition(documentControl, textPatternAvailable);
var targetDocument = root.FindFirst(TreeScope.Descendants, findControl);
var textPattern = targetDocument.GetCurrentPattern(TextPattern.Pattern) as TextPattern;
string text = "";
foreach (var selection in textPattern.GetSelection())
{
text += selection.GetText(255);
Console.WriteLine($"Selection: \"{selection.GetText(255)}\"");
}
lblFocusedProcess.Content = p.ProcessName;
lblSelectedText.Content = text;
}
When pressing a button, this method is called and the results displayed in labels.
The method uses UIAutomation to get the notepad process and extract the selected text.
This works well in Windows 10 with latest update, crashes immediately on Windows 11 with the AccessViolationException.
On Windows 10 it works even without the uiaccess=true setting in the manifest.
Questions/Next steps
Do anyone know/has a clue about what can cause this?
Is Windows 11 way more regarding towards UIAutomation?
On my side I'll probably open an issue by Microsoft.
And one track we might follow is getting an EV and sign the app itself and the installer as it'll also enhance the installation process, removing the big red warnings. But as this is an app distributed for free we had not done it as it was working without it.
I'll also continue testing with the reproductible code and update this question should anything new appear.
I posted the same question on MSDN forums and got this answer:
https://learn.microsoft.com/en-us/answers/questions/915789/uiautomation-throws-accessviolationexception-on-wi.html
Using IUIautomation instead of System.Windows.Automation works on Windows 11.
So I'm marking this as solved but if anyone has another idea or knows what happens you're welcome to comment!

How to self-register a standalone desktop C# WPF app (distributed as an exe) for local toast notifications?

We have a desktop Windows app (written in WFP/C#) that we distribute as a single .exe file with no installer (it bundles all its dependencies via a Fody/Costura plugin).
We would like to integrate a local Action Center toast functionality where the app can display a toast and respond to it when it's clicked.
Displaying the toast is straightforward and can be done by using the Microsoft.Toolkit.Uwp.Notifications nuget package. However, in order to actually receive proper notifications when the toast is clicked in the Action Center (as opposed to the balloon tip) we need to register with notification platform.
The guide on how to do this seems to be focused on apps with an installer (e.g. Wix): https://learn.microsoft.com/en-us/windows/uwp/design/shell/tiles-and-notifications/send-local-toast-desktop?fbclid=IwAR2AoHRKI88VNGRG-pTUytwhkMuovWT4bEr0RoXEayWpWsoGlghtZeq4Mo4#step-4-register-with-notification-platform
The specific task we're trying to achieve is, from the documentation:
If you're using classic Win32 (or if you support both), you have to declare your Application User Model ID (AUMID) and toast activator CLSID (the GUID from step #3) on your app's shortcut in Start.
How can we do it without writing an installer? We would like our app to do this registration on first run.
Note: the app already has provisions for elevating itself through UAC if needed by restarting itself in Administrator context.
Additional references: WPF native windows 10 toasts
[Update]
I managed to follow the instructions in https://learn.microsoft.com/en-us/windows/uwp/design/shell/tiles-and-notifications/send-local-toast-desktop
and https://learn.microsoft.com/en-us/windows/win32/shell/enable-desktop-toast-with-appusermodelid to put together what should have been a working solution, but in the end, clicking on toasts in the Action Center does not trigger OnActivated() in my NotificationActivatior.
Salient points:
Sending notification
var toast = new ToastNotification(toastXml);
DesktopNotificationManagerCompat.CreateToastNotifier().Show(toast);
Registration:
string shortcutPath = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.Programs),
"Toasty.lnk");
DesktopNotificationManagerCompat.RegisterAumidAndComServer
<MyNotificationActivator>(AppName);
DesktopNotificationManagerCompat.RegisterActivator
<MyNotificationActivator>();
if (!File.Exists(shortcutPath))
{
ShortcutManager.RegisterAppForNotifications(
shortcutPath,
Assembly.GetExecutingAssembly().Location,
null,
AppName,
ActivationId);
}
Creating a shortcut
public static void RegisterAppForNotifications(
string shortcutPath,
string appExecutablePath,
string arguments,
string appName,
string activatorId)
{
var shellLinkClass = new ShellLinkCoClass();
IShellLinkW shellLink = (IShellLinkW)shellLinkClass;
shellLink.SetPath(appExecutablePath);
IPropertyStore propertyStore = (IPropertyStore)shellLinkClass;
IPersistFile persistFile = (IPersistFile)shellLinkClass;
if (arguments != null)
{
shellLink.SetArguments(arguments);
}
// https://learn.microsoft.com/en-us/windows/win32/properties/props-system-appusermodel-id
propertyStore.SetValue(
new PropertyKey("9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3", 5),
new PROPVARIANT(appName));
// https://learn.microsoft.com/en-us/windows/win32/properties/props-system-appusermodel-toastactivatorclsid
propertyStore.SetValue(
new PropertyKey("9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3", 26),
new PROPVARIANT(new Guid(activatorId)));
propertyStore.Commit();
persistFile.Save(shortcutPath, true);
}
[Update]
Finally got it to work - not sure what was wrong before, but the final version seems to be okay. Full code: https://gist.github.com/davidair/c4ea207bf6eece4ef08b97ab29a3036f
I have the same problem with my project now.
Managed to find this repository - https://github.com/felixrieseberg/electron-windows-interactive-notifications
Here's C++ implementation for installing shortcut (InteractiveNotifications file, InstallShortcut method). I guess the problem is how we set the value to PropertyStore, string GUID is not suitable for some reason. Still, I wasn't able to solve the problem for now.
UPDATED: Finally, was able to install shortcut from code! Check my example at Github. https://github.com/romayavorskyi/WpfNotificationTest (still a lot of hardcode, but it should give you the general idea). And you were right, shortcut path matters. It seems shortcut should be in the ProgramData folder for correct work.

Turn on Airplane mode using AccessibilityService Class in Xamarin

I want to turn on or off airplane mode using AccessibilityService.
Any idea how we can do it?
Yes, you can't change it from app that target bigger than Android 4.2. But you can open the settings page instead if you want:
if (Android.OS.Build.VERSION.SdkInt < BuildVersionCodes.JellyBeanMr1)
{
try
{
Intent intentAirplaneMode = new Intent(Android.Provider.Settings.ActionAirplaneModeSettings);
intentAirplaneMode.SetFlags(ActivityFlags.NewTask);
Context.StartActivity(intentAirplaneMode);
}
catch (ActivityNotFoundException e)
{
Log.Error("exception", e + "");
}
}
else
{
Intent intent1 = new Intent("android.settings.WIRELESS_SETTINGS");
intent1.SetFlags(ActivityFlags.NewTask);
Context.StartActivity(intent1);
}
}
And AccessibilityService can used with dependency service.
Kamal you’re not going to be able to do it.
It doesn’t seem like you’re doing iOS, but iOS has a lot of limitations due to privacy and security purposes that won’t allow you to do this. You can see more details here stackoverflow.com/q/20469425/11104068
Also android blocked being able to do this from Android 4.2 onwards. Only system apps can make changes to Airplane mode, as you can see here stackoverflow.com/a/5533943/11104068
Since it doesn’t seem you’re creating a system app that gets installed with the operating system, and not through the Play Store, you won’t be able to get permissions. It will give you an error /exception even if you implement everything

How can I send input to Visual Studio using Windows API

I am trying to develop a util (using system-hook) for that works like an expander (user selects some text and presses a hotkey and it is expands). It should work with Visual Studio.
I want to implement this using Windows API because I want to develop an app that works globally with any application (whether you're using VS, or wordpad, you should get the same functionality).
I've been able to do this successfully with notepad, wordpad, etc. using EM_ GETSEL and EM_REPLACESEL messages. But these APIs are not working with Visual Studio, or ms word.
What APIs should I use to be able to
1. Detect what text is selected.
2. Send input to the editor.
I am programming in C#. If you must know what I am trying to do... I am trying to make a universal port of ZenCoding that works on any editor. So all help will be appreciated.
For part 2 you could try using Windows Input Simulator which is an open source project I've just released to Codeplex to wrap the Win32 SendInput. Instead of SendKeys which just simulates text input, you can actually simulate real key strokes and complex chords to the active window.
In your case, if the user can perform the task with the Keyboard, this project will help you, otherwise you'd need to find another solution.
Hope this helps.
Why don't you use a System.Windows.Forms.SendKeys class for simulating keyboard input from user?
You can use:
SendKeys.SendWait("^C"); //CTRL+C
var selectedText = Clipboard.GetText();
var newText = Replace(selectedText);
SendKEys.SendWait("^V"); //CTRL+V
You can use WPF's Automation functionality, encapsulated in these two namespaces:
System.Windows.Automation
System.Windows.Automation.Provider
As an example, this is a method for finding an automation target element (e.g. a typical win control):
public static AutomationElement FindElement(AutomationElement context, PropertyCondition[] conditions)
{
// if no conditions, there's no search to do: just return the context, will be used as target
if (conditions == null)
{
return (context);
}
// create the condition to find
System.Windows.Automation.Condition condition = null;
if (conditions.Length <= 0)
{
throw (new ArgumentException("No conditions specified"));
}
else if (conditions.Length == 1)
{
condition = conditions[0];
}
else
{
AndCondition ac = new AndCondition(conditions);
condition = ac;
}
// find the element
CacheRequest creq = new CacheRequest();
creq.TreeFilter = Automation.ControlViewCondition;
using (creq.Activate())
{
AutomationElement e = AutomationContext(context);
AutomationElement target = e.FindFirst(TreeScope.Subtree, condition);
return (target);
}
}
Whatever you try, be absolutely sure to try it, ASAP, with Visual Studio 2010 beta 2. The editor has largely been rewritten, and hacks that work with an earlier version should be tested again.

Categories