My aim is to place my application in the tray bar but I don't know how to do that for a WPF application ! (for a winform there is lots of docs but I don't find anything for Wpf)
Thanks
You could use this library for the tray icon, and to not have any windows you should remove any StartupUri that may be defined in the App class by default. Then you can override OnStartup to prepare any logic that your application should perform.
Not sure if you can assign a TaskbarIcon of this library directly to the application since it is normally used on Windows. But you can create a dummy popup to make it show up.
public TaskbarIcon MyTaskbarIcon { get; set; }
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
Popup pu = new Popup();
pu.Child = MyTaskbarIcon;
//...
}
If you can have windows you can create a TaskbarIcon there and then you can call Hide() if you need it to completely disappear.
After testing it, I recommand http://possemeeg.wordpress.com/2007/09/06/minimize-to-tray-icon-in-wpf/
But be sure your icon is an an “Embedded Ressource” not “Ressource” in properties in Visual Studio.
Related
i currently implement an uwp application and i would like to use a secondary tile. I succeeded to create this tile but i don't find any documentation explaining how to open the view of my application when i click on this tile. Thanks in advance for your help.
I find a solution to this problem. In fact, i use the same strategy as windows 8.
We just need to use the OnLaunched event handler (in App.Xaml.cs) to discover if the app is launched from a SecondaryTile or the primary one
protected override void OnLaunched(LaunchActivatedEventArgs e)
{
bool CalledFromSecondaryTile = false;
if (!string.IsNullOrEmpty(e.Arguments))
{
CalledFromSecondaryTile = true;
}
I am finished making my application and now I want to incorporate " minimizing into the system tray feature " for it . I read up a good article minimize app to system tray . I realized that these make use of the Windows.Form class .
Unfortunately I have used Windows Presentation Foundation WPF reference to make my applications UI . Now I see that the NotifyIcon is not supported in WPF. I see that there is an open source library on CodePlex that simulates the NotifyIcon properties WPF Contrib I have not used it as yet .
Now I am in a fix . Here are my questions :-
a) I don't want to incorporate a 3'rd party library just for one single component .
b) Can I do the minimizing feature without NotifyIcon on WPF? If yes then how can someone give me leads please ?
Or maybe I should revert my UI back to using Windows Forms ?
If you'll reconsider your reluctance to using an external component, I recommend WPF NotifyIcon. I've used it. It's straightforward and works well.
It does not just rely on the corresponding WinForms component, but is a purely independent control which leverages several features of the WPF framework in order to display rich tooltips, popups, context menus, and balloon messages.
I just came across this post today.
For reference, I also solved this some time back. It works very well and the only time I have had a bit of an issue is occasionally on some multi-display set ups.
This was before GITs and NuGets were the in-thing, I will place it in a GIT repo if there is interest.
CodeProject Article Here
Solution with System.Windows.Forms.NotifyIcon
Here is a thread , which helped me a lot .
https://stackoverflow.com/a/12428063/10305444
public partial class Window : System.Windows.Window{
public Window()
{
InitializeComponent();
System.Windows.Forms.NotifyIcon ni = new System.Windows.Forms.NotifyIcon();
ni.Icon = new System.Drawing.Icon("Main.ico");
ni.Visible = true;
ni.DoubleClick +=
delegate(object sender, EventArgs args)
{
this.Show();
this.WindowState = WindowState.Normal;
};
}
protected override void OnStateChanged(EventArgs e)
{
if (WindowState == WindowState.Minimized)
this.Hide();
base.OnStateChanged(e);
}}
I am making a multiple form based application and have encountered a problem with a notify icon. I have added the notify icon to the first (main) form the user sees but I quickly encountered a problem when the user navigates away from this form and then back to it where a new notify icon is added to the task bar. The way around this i have found is to call ShowDialog() on forms loaded from the main menu and then just Ilosing these forms when the user navigates back. Is this really the only way to do this? I have a very deep application with multiple forms deep do I always have to keep the first form in memory and on screen to maintain the notify icon and ensure new notify icons are not added to the taskbar?
Thanks
As with other WinForms components, this one doesn't need to be placed in a form to work correctly. You can instantiate it, set properties and bind events on another class that isn't a Form. For example, this is a class that could manage a NI control:
namespace WinformsTesting {
using System;
using System.Windows.Forms;
using System.Drawing;
public class NotifyIconManager {
private NotifyIcon _ni;
public void Init() {
_ni = new NotifyIcon();
_ni.MouseDoubleClick += new MouseEventHandler(_ni_MouseDoubleClick);
_ni.Text = "This is my notify icon";
Icon icon = new Icon(#"C:\temp\myicon.ico");
_ni.Icon = icon;
_ni.Visible = true;
}
void _ni_MouseDoubleClick(object sender, MouseEventArgs e) {
MessageBox.Show("Hello");
}
}
}
The only problem here is interaction with the rest of your application, but depending on how you're using the NI control this might be a good starting point.
I would keep a dictionary-type collection at a level higher than your form. Keys would be formId/reference and bool for whether the notify icon was showing or not. Before I would show the notifyIcon, I'd check to see if the Form already has one showing. I'd also register events for the notifyIcon so that when it closes, if changes the dictionary value.
Just an idea to get you started.
I would like to display a WPF window from a windows forms application (.NET 3.5).
This code seems to work without any problem in a sample project:
public partial class WinFormsForm1 : Form
{
public WinFormsForm1() {
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e) {
WpfWindow1 w = new WpfWindow1();
w.Show();
}
}
The form is started from Main() as a normal Winforms form:
Application.Run(new WinFormsForm1());
This seems to me too easy to be true. Are there any shortcomings in this? Is this safe to do?
It has one serious shortcoming: the modeless WPF window would not get keyboard input.
The EnableModelessKeyboardInterop method call needs to be added before the WPF window is shown:
WpfWindow1 w = new WpfWindow1();
System.Windows.Forms.Integration.ElementHost.EnableModelessKeyboardInterop(w);
w.Show();
ElementHost resides in WindowsFormsIntegration.dll.
Further reading: http://msdn.microsoft.com/en-us/library/aa348549.aspx
Bottom line: it is.
We have pretty heavy application combining both WPF and winforms: windows, user controls, modal dialogs, you name it... and it's working in the medical market.
We've got into some dark corners, one is the infamous EnableModelessKeyboardInterop, another is having the WPF window be the child of the Winforms window, which you can read Here
It is really that simple. I can't think of any downside doing it this way.
I'm launching an application from a WPF app using the Process class that displays a splash screen at startup. Rather than show the user the splash screen, I'd like to hide the application for the first couple of seconds after starting it by keeping my window topmost and maximized. The problem is that starting this application automatically takes my window out of topmost mode and shows the windows task bar. Is there a way to prevent the process from showing a window for a few second until it starts up, then displaying its window?
So you have two application fighting about being top most window but of course only one can be top most at the same time. Windows rightfully don't let a single application make that decision, that would be a security hole. See Raymond Chen's answer here why: http://blogs.msdn.com/oldnewthing/archive/2005/06/07/426294.aspx
Do you own the application you are trying to start without showing it's main window directly at startup? In that case do the following.
Override the Application.OnStartup method in your App class and do your initialization there. No windows or taskbar buttons will be displayed (automatically) until after that method finishes.
using System.Diagnostics;
using System.Threading;
using System.Windows;
namespace DelayedStartDemo
{
public partial class App : Application
{
protected override void OnStartup(StartupEventArgs e)
{
Thread.Sleep(5000);
base.OnStartup(e);
Debug.Assert(MainWindow == null);
}
protected override void OnActivated(System.EventArgs e)
{
Debug.Assert(MainWindow != null &&
MainWindow.Visibility == Visibility.Visible &&
MainWindow.ShowInTaskbar);
base.OnActivated(e);
}
}
}
Can't you just set the visibility of the MainWindow that starts up to Collapsed and then toggle it after the splash launches?