How do i set my window above all other? I need a bad but noticeable msg box that closes on its own.
Msg is a dummy form which is empty. All i want is its title.
The problems with the code is the window isnt created 0,0 (its just whereever windows feels like putting it). The width is correct but i notice if i click firefox or another app window my app doesnt pop up. I know it is being shown bc i can see it in the taskbar at the bottom for a brief second. So the bugs so far
Doesnt go topmost if i click another app
Isnt 0,0
How do i fix this?
{
var msg = new Msg();
msg.Text = (has ? "*" : "+") + args[0];
msg.TopMost = true;
msg.Width = 2000;
msg.Top = 0;
msg.Left = 0;
msg.Show();
System.Threading.Thread.Sleep(1000);
msg.Close();
}
Sounds like TopMost doesn't always do it; here's an answer to a similar question showing how to hook into Win32 for the call: Form top most?
Update: just read the rest of the answer; it might only fail running in Debug mode within Visual Studio (where your app is actually executed with vshost.exe, rather than running independently).
Related
I used a wpf and set Topmost=true, this works for other applications but I want to put the form in taskbar, when the task bar get focus, the form is blocked.
I want to know if there is any method to make the form always on top?
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Another question is that I want to add some buttons on taskbar so that I can click them easily, but I only found trayIcon which is limited in functions.
YourCustomWindow cw = new YourCustomWindow ();
cw.Owner = Application.Current.MainWindow;
cw.ShowInTaskbar = false;
cw.ShowDialog() ;
When displaying a WPF window from an Excel addin, I'm encountering odd behaviour whenever I show it with myWindow.Show() rather than myWindow.ShowDialog(). Thus far everything has worked fine when using the latter. However, it would be nice to be able to display a window such that the user can interact with Excel at the same time - i.e. the behaviour I'd expect from Show().
The problem is that controls in my form start acting very oddly quite quickly. ComboBox dropdowns collapse immediately, and textbox input ends up in whatever cell is selected in the Excel worksheet that's active.
I've noticed that with ShowDialog, Snoop is able to attach to my window as well, whereas with Show, I get an error amounting to "Could not find a PresentationSource to attach to". I'm not, however, completely sure if that's related.
Obviously one solution would be to stop directly showing a WPF window from WinForms; I expect the problem to largely go away if I change my window into a UserControl and chuck it into an ElementHost. However, I'd rather avoid that if I can.
Current code (roughly)
public void DoOpenWindow(Office.IRibbonControl button)
{
var myWindow = new myWindow();
// This hasn't addressed the issue, though may be sensible to include:
//ElementHost.EnableModelessKeyboardInterop(myWindow);
// This *also* didn't work, and essentially set my window to
// be always on top of Excel
//var hwSrc = HwndSource.FromVisual(myWindow );
//var ownerHelper = new WindowInteropHelper(myWindow );
//ownerHelper.Owner = (IntPtr)Globals.ThisAddIn.Application.Hwnd;
// with ShowDialog() this works fine...
myWindow .Show();
}
Current thoughts are:
I'm getting window messages from Excel forwarded to myWindow, some of which it isn't expecting.
Excel is intercepting messages meant for my window (keyboard and mouse), which is probably what ElementHost.EnableModelessKeyboardInterop(myWindow) is intended to solve (but either I'm using it wrong, or it's not the whole solution).
I am using WPF NotifyIcon to create a System Tray service. When I show a messagebox, it shows up for half a second and then disappears immediately without waiting for input.
This kind of situation has happened before, and the usual advice is to use an overload which accepts a Window parameter. However, being a System Tray service, there is no window to use as a parent, and null is not accepted in its place.
Is there any way to make the MessageBox wait for user input short of creating a custom MessageBox window myself?
You don't need to create a proxy window for this. Just add MessageBoxOptions.DefaultDesktopOnly to your message box and it will fire on your desktop without disappearing.
Example
MessageBox.Show("My Message", "Title", MessageBoxButton.OK,
MessageBoxImage.Information, MessageBoxResult.OK,
MessageBoxOptions.DefaultDesktopOnly);
According to the answer here, a workaround is to actually open an invisible window and use that as the parent of the MessageBox:
Window window = new Window()
{
Visibility = Visibility.Hidden,
// Just hiding the window is not sufficient, as it still temporarily pops up the first time. Therefore, make it transparent.
AllowsTransparency = true,
Background = System.Windows.Media.Brushes.Transparent,
WindowStyle = WindowStyle.None,
ShowInTaskbar = false
};
window.Show();
...then open the MessageBox with the appropriate parameter:
MessageBox.Show(window, "Titie", "Text");
...and don't forget to close the window when you're done (possibly on application exit):
window.close();
I tried this and it works well. It's undesirable to have to open an extra window, but it's better than making your own messagebox window just for the sake of making this work.
I am trying to create an application that will have a tray icon only, and not appear in the taskbar. (similar to Dropbox) I need to create both Windows and Mac version of the application, so I tried using MonoMac to create the Mac front-end.
What is the best way to create a tray-only application in MonoMac?
All the resources I have found say to do one of two things:
Add <key>LSUIElement</key><string>1</string> to the Info.plist file.
Add the following code to the FinishedLaunching event in the AppDelegate class: NSApplication.SharedApplication.ActivationPolicy = NSApplicationActivationPolicy.Accessory;
I have tried all combinations of these two, but it seems that as soon as I try to instantiate a C# System.Timers.Timer, the icon reappears in the dock at the bottom of the screen. Am I missing something about how OSX handles background applications?
What am I doing wrong? Is there a better way to make a background application that has an upper tray icon but no bottom dock icon in OSX?
(This is very similar to this SO question, but that question was from a couple years ago and was never fully answered, so I'm hoping there might be a more complete answer out there.)
Here's the code I have so far:
public partial class AppDelegate : NSApplicationDelegate
{
MyServiceObject currentServiceObject;
public AppDelegate () { }
public override void FinishedLaunching (NSObject notification)
{
// Construct menu that will be displayed when tray icon is clicked
var notifyMenu = new NSMenu();
var exitMenuItem = new NSMenuItem("Quit My Application",
(a,b) => { System.Environment.Exit(0); }); // Just add 'Quit' command
notifyMenu.AddItem(exitMenuItem);
// Display tray icon in upper-right-hand corner of the screen
var sItem = NSStatusBar.SystemStatusBar.CreateStatusItem(30);
sItem.Menu = notifyMenu;
sItem.Image = NSImage.FromStream(System.IO.File.OpenRead(
NSBundle.MainBundle.ResourcePath + #"/notify-icon.icns"));
sItem.HighlightMode = true;
// Remove the system tray icon from upper-right hand corner of the screen
// (works without adjusting the LSUIElement setting in Info.plist)
NSApplication.SharedApplication.ActivationPolicy =
NSApplicationActivationPolicy.Accessory;
// Start running the program -- If I comment out then no dock icon appears
currentServiceObject = new MyServiceObject();
}
}
I found the problem, and it wasn't related to the application settings at all. Evidently, there are some operations that MacOS does not allow an 'Agent applications' to perform. As soon as one of those methods is called, the application is forced to appear in the dock. The code that was tripping up my application was a call to:
System.Windows.Forms.Cursor.Position.ToString()
Removing that line, and replacing it with the following MonoMac method allowed the application to remain hidden:
NSEvent.CurrentMouseLocation.ToString()
I was able to get this working by setting the value of "Application is agent (UIElement)" key to 1 in the info.plist file. Even though it should be a BOOL value, MonoDevelop makes it a string, but setting it to 1 seems to work. You can also set an empty string the for the "Icon file" but it's not necessary.
I'm trying to add a button to my current project that when pressed will send the window to the back for x-seconds, allow the user to work in other windows, and then automatically come to the front again. By combining How to send a WPF window to the back? and Bring a window to the front in WPF, along with a BackgroundWorker, I was able to get this 99% done. When the button is pressed, the window goes to the back, and returns the specified number of seconds later. The problem is that if I go into another window (Opera, Word, etc), it never return from the back. I tried playing with the flags, but can't seem to get it to work. Is this possible to do? And if so, how?
Thanks!
With a hack it's possible. Just do that:
Topmost = true;
Topmost = false;
and the window should be in front.