Wpf show window on second monitor Owner property for some or all of the (non-MainWindow) windows in your System. I capture the mouse position and based on that I get a pixel location and I then create the WPF window there. Trouble creating a WPF window in a secondary monitor. When I open my application in Screen 2, and then move it from screen 2 to screen 1 and try to minimize and then maximize my application, the maximum size is taken by screen 2, and not by current monitor Apr 2, 2009 · AFAIK there is currently no way to do this purely with WPF. In WPF we have a couple of options by using the Show() and ShowDialog() methods. cs, call: BobbyWindow bWin = new BobbyWindow(); bwin. Windows; namespace ExtendedControls { static public class WindowExt { // NB : Best to call this function from the windows Loaded event or after showing the window // (otherwise window is just positioned to fill the secondary monitor rather than being maximised). Show(); form. xaml of your WPF If you have multiple monitors, I believe the screen UI dimensions are simply larger. Here's the code: Point point = cell. But creating a window instance and showing a window from view model is a violation of MVVM. Location = Screen. In a Windows System, the Primary Screen (programming perspective) is the Display device which has its upper left corner position set at Point(0,0). Before that, apparently Left/Top properties of the window scale with DPI of the primary monitor. Modified 2 years, 8 months ago. This is on a two-monitor setup. Top = desktopWorkingArea. AllScreens and then get the dimensions of each, then place your form where you need it. This works with opening a new Window instance, this. Show(Me) I want to display a Window on secondary monitor, as follows: Queue<string> itemQueue = new Queue<string>(); MonitorWindow monitor = new MonitorWindow(itemQueue); var secondaryScreen = Trouble creating a WPF window in a secondary monitor. What I want to do is have the "presenters screen" on one monitor and another panel on the secondary monitor, similar to how powerpoint works. Run(); }); windowThread. Something like this would work. In your example code, your problem is that because lw. This app should work. Well, if you want to close the opened window when a new window gets open then you can use the Show() method: Window1 win1 = new Window1(); win1. It is not necessarily a 1:1 mapping with the physical display area of the backing monitor. Count once you get the location of secondary Struggling to get a WPF Window showing up on secondary screen with mixed DPI monitors. 0, windows 7, ribbon my addin has a ribbon tab, several ribbon buttons, when one ribbon is clicked, the addin will send several web service calls and a window will pop up providing data in tab, treeview Possible Duplicate: The best approach to create new window in WPF using MVVM Hello Friends, I have two view MainWindowView and AddCustomerView. Size; of course you have to check first if you have an active secondary montiro with Screen. ShowDialog(). Screen. Column="1" x:Name="CenterFrame" VerticalAlignment="Stretch" VerticalContentAlignment="Center" HorizontalAlignment="Stretch" HorizontalContentAlignment="Center" There's a fundamental difference between lw. Ask Question Asked 12 years, 4 months ago. Show(); Otherwise, if you need to open a window from the ViewModel or using a ICommand, then you can look at the "Open Windows and Dialogs in MVVM" library I wrote on GitHub. Also, I don't know if this is the best way to keep my application's sizes in a variable scenario, you can do something like this: // Get parameters for secondary monitor this. Table of contents: In this article, you will learn how to position WPF window on secondary monitor or show two windows on two monitors. Try this ShowDialog method instead of Show to open the second window as a dialog. Left; Top = screen. Should launch a full screen window on monitor 2. this. If you want to pull from the second display explicitly (ignoring the case where you have 3n displays), you can replace PrimaryScreen with AllScreens[1]. This was tested with each monitor being set as the primary monitor in Windows. I have searched on internet, and I have got the approach that using Screen. Right click on project and Add new Window. 8 as well as . xaml and Window2. In your case I would set it to OnExplicitShutdown. After I closed them, they return on the primary. To show the new window: Window1 secondWindow = new Window1(); secondWindow. Linq; using System. You name it Window1. xaml. ScreenNumber equals 2, it will not position itself on the second screen no matter what you do, it will maximize on your main screen. Second when I close the dialog and open it again it is not centered but moved down and right from the previous position. WPF window in a main window. WPF MVVM Doubts. And then, call it like this from the constructor of the Window you want to show on the same monitor as the MainWindow: SetWindowScreen(this, GetWindowScreen(App. Pertinent to your code snippet, you may place the OtherxamlPage. Show(); win1. Left = desktopWorkingArea. However the SystemEvents_DisplaySettingsChanged never gets called when I move the window to another monitor. Without that it works fine on win 7 but not on win 8 and win 10. Show() returns immediately, I will start from beginning, I aw working on an application which will span over multiple monitors, each monitor will contain a single WPF window and these windows are controled using a single viewmodel class. EDIT: additional info to reflect the comments. lw. Windows. Now it just displays on top of the feed. I did Projects -> Add Window and named it Window2. Following what I founded in other threads and discussions I wrote this: System. I Jul 8, 2024 · For whatever it is worth, since this answer is the first result provided by Google. Left = point. xaml to start up your application and, as Nikhil Agrawal said, change StartupUri dynamically. (the class name for the window would be Dec 23, 2011 · Add a second Window (the first one being MainWindow. PointToScreen(new Point(0, 0)); Window myWindow = new Window(); myWindow. For some combinations of per-monitor DPI and monitors layout, this caused a bug where setting Left/Top properties to the pixels values of System. In my project explore I have MainWindow. I haven't tried this because I am away from my second monitor but it shouldn't be hard to test. Rusev this return the hwn of monitor? Then how can use that hwnd for know what monitor number is? I mean the numbers windows show on the display config. Show() End Sub Then in the Main window, call your overloaded method Show(): Dim Popup As PopupWindow Popup = New PopupWindow Popup. cs I have it Initialized. But the problem is that when other desktop windows are moved over the pop up, the pop up covers the other desktop windows. Bounds. I'm struggling to WPF doesn't include the handy System. Ideally, the display would scroll continuously so that the last line added was always visible. Close() Share. Top = point. It works fine with only one monitor, but with multiple monitors, the window is displaced. PrimaryScreen. This is my purely WPF solution to center a Window on the primary monitor with a border of empty space around it (because I don't want it maximized). Many of the answers on this page involve nulling-out the Window. Closing the window you assign to Application. Primary). Moving the child window around on the primary monitor moves it on the secondary one. Please note that I am a newbie when it comes to both of them. Minimal repro: app. It's not that complicated. I would recommending using a BackgroundWorker to do your long running task. It works fine as long as both windows are on the same monitor. I can make it work by Maximize WPF window on 2 monitor. It's just that the AppView. I have the following classes that comprise the Model, View, and ViewModel layers of my WPF application: // Set MainWindow View datacontext to MainWindow ViewModel and then show the window I just started with wpf. (Sometimes, rarely, I even hit exceptions!) WPF window shows blank. AllScreens. cs added to your project. Left = xxx; Application. Essentially you have to get screen information from Screen. hide(), this. Notification. Especially the check box »Let system position window«. My solution: Set the window width and height to 1, after loaded, resize it to normal size. If you can't or do not want to add the entire System. MainWindow. AllScreens[], however I have the following question. If I move one window to another monitor and resize it, the video lacks. X; I am running Visual Studio 2019 (Windows GUI application) on the 2nd monitor. When I build and start the application, it always appears on the primary/main monitor. Name it as you please, I will use the default (Window1). MainWindow will cause the application to shutdown, if Application. The window doesn't show at center. Forms dll reference, you can use WpfScreenHelper by micdenny (search in NuGet) Screen screen = WpfScreenHelper. 3. Ask Question Asked 10 years, 5 months ago. function void showOnMonitor(int showOnMonitor) { Screen[] sc; sc = Screen. Forms form. ShutdownMode. I would also like to add the following taken from Eugene Prystupa's Weblog: "There is one catch to our simplified solution. I The window will eventually go black in WPF, and the program will change to "Not Responding". SetApartmentState When I Start Debugging an application from Visual Studio, it launches the application directly on top of Visual Studio. net 4. ResizeMode = ResizeMode. So the normal "1 monitor" approach of storing and restoring the location will just work. May 23, 2017 · Since the window is not yours, you can only move it by invoking the Windows API. Viewed 9k times 4 . While this is a simple and easy fix that does indeed, in isolation, fix the issue of Window overlap, unfortunately it also inhibits a lot of useful application-wide functionality that WPF seems I am developing a WPF application. OnWindowClosed; Dispatcher. 2. I need to show a running timer on the window along with information of a test, such as ID, test name, status, start time, end time, etc. Just delete the StartupUri="MainWindow. Example Display window in the second display WPF private void I'm trying to set a Windows Form on secondary monitor, as follows: MatrixView n = new MatrixView(); Screen[] screens = Screen. Left such as moving it with increments of 128 pixels, I do manage to get it to show on the Secondary Left monitor once it reaches Window. All WPF rendering is working in virtual coordinates, which are mapped to physical pixels according to system's DPI settings. I would like to force this new window on to my second monitor while the camera feed is on the other one - the "main" monitor. NoResize; // re-show the window after changing style MyView view = new MyView(); view. This window will be used to draw graphics. Show(); Open a second usercontrol from the first user control wpf MVVM. My setup is a square-ish monitor on my left and a widescreen on my right. You can use App. I am developing a wpf application using Prism that: opens the application on monitor 1. I want to create a dual monitor/projector application. [Actual Result] WPF application is launched in Screen 2. You can see the default values being set in app. Show()) that you want to use in order to block use of the underlying window and to keep the code from continuing until the modal window is closed. I made a sample application (code is below) which induces this behavior. xaml inside the central frame and set the properties of that frame like shown below: <Frame Grid. cs. (the class name for the window would be Setting CenterScreen causes a window to be positioned in the center of the screen that contains the mouse cursor. Now you can modify this window in the same way as you did for your original window. Viewed 4k times 4 Excel AddIn, c#, . I need this functionality to determine if a window needs to be repositioned because the monitor configuration (working areas bounds, monitor count) changed between restarts of my application (which saves window positions). Click the green child window to maximize. cs, Window2. Screen class to get information about the screen(s) Reposition your window: Application. The post contains complete code and we discuss how to address several scenario. NET Standard 2. WindowState = System. EDIT: additional info to reflect the comments The main difference between Apr 8, 2011 · First note that the concept of "Maximized" is tied to a single monitor, so you cannot truly have a maximized window on multiple monitors. I quickly came to the conclusion that simply switching a boolean flag bound to the UI, before and after the operation doesn't work. Ask Question Asked 6 years, 3 months to just hide the window and perform restoration of the state just somehow in the background and only at the end show the window. And if I move the main window to a second monitor the popup still opens on the default monitor. 5. now lets say i have a button on all the windows at 200,300 (x,y) and i want that this button should be responsible for a tool on same window, Right Click on your Project --> Add --> New Element --> Window. . Setting WindowStartupLocation to CenterOwner causes a window to be positioned in the center of its owner window (see Owner), if specified. Where(s => s. Maximized; I'm very new to WPF. When I tried to run the project only MainWindow shows up eventhough in Windows. That code does not work for your second screen because it is explicitly using Screen. Now I drag and drop the Main window to another (Secondary) monitor, and When I try to login, The Main window is automatically moved to the primary monitor. Source So iv looked around for a bit and found out that MDI is obselete for WPF, Basically what i am trying to do is show a specific page in a grid object on load, and once a menu item from my drop down menu is selected, the content of the grid will be changed to the content from a different page (this is depending on which menu item is selected). Closing a particular window does NOT terminate this window’s thread dispatcher, so the thread keeps running and, after closing all windows, the process will not Nov 14, 2011 · Why do you need this? If you want to simply resize the window, @Fischermaen gave you the answer. WPF display data on multi monitors. So now the Main Window is loaded with Home page, But the window is on Nov 13, 2024 · I have a Button and I bind this button to a command in ViewModel say OpenWindowCommand. But I'm trying to open a new WPF Window in a second monitor from a Windows located in the primary monitor. When 'p' is pushed, it grabbes just the face and display this one frame in another window. Modified 4 years, 5 months ago. Show() command (which is actually Window. TestWindow" My requirement: Start a process to show a window, and embed it into a wpf control. I. Monitor 1, the 'home' monitor, always has the desktop icons and any add-on gadgets confined to its screen. So the only decent workaround, other than giving up on SplashScreen, is to get your main window displayed on the main monitor as well. This will demonstrate how to open a Window by clicking on a button using the MVVM design pattern. Note: However, if WPF application is executed in Screen 2 with the above same steps, WPF application is launched in Have you looked at the WindowStartupLocation property for Window?. Screen 2: which is primary screen with 1600x900. Right - this. Location; this. xaml and Window1. It is not unusual for the application to run for several days. Closed += window. However you should be able to: Use the System. If I install it with the released data, all form open on the primary monitor, even if I drag them on second screen. This imposes a step, albeit small, in my debugging to move the application window to my second monitor, so that I can see the application's state while also watching breakpoints hit. This is not needed, since WPF already manages this. ShutdownMode is set to OnMainWindowClose. Let's call it BobbyWindow. Top = yyy; In the popup window, overloads the method Show() with a parameter: Public Overloads Sub Show(Caller As Window) Me. xmal. <Window WindowState="Maximized" Asuming that Config. (One will be calling the other. Add any UI elements you like and code them to your desire. This is my code: XAML container in both windows: Normally, the resolution of the work laptop screen running the program and second monitor have resolutions 1920 x 1080, the app works fine. Show(); voila. Start the application and ensure the main window is on your primary monitor. private void Window_Deactivated(object sender, EventArgs e) { Window window = (Window)sender; window. ) Once you've found the display device 2. despite Newton's second law indicating the same acceleration?" If you have a Multi Monitor setup in Windows and you want to open a WPF window in fullscreen in a specific monitor you have no native option , but it is quite simple to obtain such functionality. AllScreens[0]; Left = screen. Forms. A green child window should appear. SystemParameters. Here I have to apply the DPI ratio in order to get the Window to render in the right place and size. The upper left corner of the client area of the window (the point returned by PointToScreen) is always translated 8 pixels horizontally and 30 pixels vertically from the upper left corner of the window. The code I have used: I have developed WPF application and I'm running it on a dual monitor system, and I want to open my startup window on the main monitor. How do I create 2 windows using Prism? Should I show this using a dialog or is there a better way a window on second monitor and draw grpahics? The native window location is hard-coded to be at the center of the main monitor. Y; myWindow. using System. – Jun 4, 2019 · Try this ShowDialog method instead of Show to open the second window as a dialog. For example, if a user clicks a button on your Window and a dialog opens, the cursor will still be over the button and thus the dialog will show up in the center of the same targetScreen in the code above is correctly finding the screen I want, and the Top and Left values of the new window are getting set correctly, to 0 and 1680, respectively. 6. 1. ShowDialog() will wait for the window to close manually by the user, then return a value of true/false. Of course in WPF you can create your own window frame and draw anything you like in it, so if you want you can certainly make the user think the window is maximized and spanning multiple screens. dual monitor dual window app in wpf. Height; I'm using WPF in C#. Show()) creates the window on the primary screen :(– Going fullscreen on secondary monitor. Double-click the main window. Here is the monitor setup: I tried adding different values to Window. Setting CenterScreen causes a window to be positioned in the center of the screen that contains the mouse cursor. Left to that value, my window just disappears. First, you need 2 WPF windows. AllScrens. Improve this answer. Reproducible in . Screen rectangle caused the window to be positioned somewhere else. Screen 1 is larger then Screen 2. The UI does not get refreshed until the entire operation completes. Show(); Below is a function allowing you to display a form on any monitor. There can be multiple display regions within the same monitor, or a DisplayRegion can be configured to span across multiple This also was solution for WPF on windows 10. MainWindow)); Share. Show(), this. xaml, Add a Program class to your project containing a Main method, and then go to the project properties and set I am trying to detect when the window of my WPF application is dragged between monitors, so I can change its size to fit the monitor it has been dragged to. Show(); window. Meanwhile, in the background, I want to initialize the app, then load the main window. This all works fine on the primary monitor or on multiple monitors as long as the DPI is the same. 0 Setup: Primary monitor : 4K, 250% Secondary mo I have a WPF main window that has a grid and i have added a WPF pop up to ask the user for extra info when a button is clicked. There are many ways to connect many monitor to PC On the application launch, Main window is loaded with login page and positioned at the center of the primary monitor. xaml" attribute in App. The window must be loaded normally, trigger initialized/loaded events, then run as child window in control. NET Framework 4. 0. But if you want to change the size of fonts, etc. I need to to display a window on top of the screen like a window taskbar. , it is not claiming rights to be on top off other windows. The way you asked the Question is seems like you haven't tested it. Owner = Caller MyBase. I want it to appear on the same monitor where I am running Visual Studio. What helped in the WPF > Windows > Forms > Screen AllScreens g ets an array of all displays on the system. If the window doesn’t exist yet, the process hasn’t created it Jul 8, 2011 · I'm unable to reproduce the problem your experience. However, when I use my personal laptop with screen at 3840 x 2160 resolution I cannot get the counter to display on the second monitor, it opens always on the laptop, main monitor. AllScreens[1]. Current. The window will be shown in short time, almost 1 second. AllScreens; setFormLocation(n, screens[1]); If you have a Multi Monitor setup in Windows and you want to open a WPF window in fullscreen in a specific monitor you have no native option, but it is quite simple to obtain public static void MaximizeToFirstMonitor(this Window window) var secondaryScreen = System. WindowState. For your current scenario you can call this showOnMonitor(1);. Are these properties wrong or am I just thinking it should work in a different way. Expected behavior: The window should be in the center of the second screen. manifest Check your Application. You should be able to compute the values 8 and 30 from the Aug 1, 2006 · I have two monitors: Screen 1: which is secondary screen with 1920x1080. Bottom - this. Full code is accessible on GitHub The post shows how to position Wpf window on secondary monitor or show two windows on two monitors. I have written a simple application that plays a video file in one window and duplicate the video frames to the second window (syncron video rendering). You have a WPF project already with a window. Left = 0 but it can never show According to the MSDN documentation for the WindowStartupLocation Property:. The post contains complete code and we discuss how to address several scenarios. E. Show() will immediately return to the next line of code without waiting for the window to close. ) From the first window, let's say that was called MainWindow. I want to have two windows. The problem is that the login window is covered up by the main window once shown. But that is the method (not . my application will have these windows: a main display window; an option panel to change what's on the display window; how can I make it so that when the application starts, both of these windows open, and how would I go about making user decisions in the options window affect display in the main window? Thanks! Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company So I'm assuming it thinks that is the parent. I have come up with the code below and it seems to work, but it has several problems: I need to reference windows forms. FirstOrDefault(); if It is when I open up a window from the main window that displays on the second screen, in full screen mode, the problems start with DPI over 125%. However, you can still start up your application from public static void Main(). If MainWindow at a second screen. Top; Width The post shows how to position Wpf window on secondary monitor or show two windows on two monitors. How to detect the first show of a WPF Window? 4. You would now notice Window1. var desktopWorkingArea = System. Application. Its code may push new windows to a monitor with a less crowded screen, or accept a new pop-up screen if that window is low on the z-index. Instead of using a traditional splash screen, I want to display a login window to allow the user to enter their credentials. The main difference The problem itself is if I run the code with the debug data everything run as I want, open the application on second screen and all the next form open on this screen. spending-wise, between the first version of the December 2024 budget System Displays disposition and VirtualScreen. The new window shows beyond the screen. Actual behavior: You can see if the MainWindow is in primary screen, new window is correctly displayed at the center of the screen. DataContext = viewModel; window. Show() and lw. first subscribe to the state changed event: public MainWindow() { InitializeComponent(); this. Bound s. So I followed a video online that showed me how to implement MVVM in a WPF application. You will have to do this: Launch the process. The owner window can be either another WPF window or a non-WPF window. Show a running timer in a WPF window. Size = Screen. window. xaml, in its code-behind will be: I have a opencv program in python that takes frames from a webcam and displays the feed. Close(); ShowDialog() also opens a window, but in this case you can not close your previously opened I'm trying to set a Windows Form on secondary monitor, as follows: private void button1_Click(object sender, This method shows forms on selected screen from left to right: Showing a window with WPF, Winforms, and Dual monitors. Nothing you can tweak to alter that. Add a second Window (the first one being MainWindow. To do so, first move the window where you'd like it to appear, then open the properties, go to the Layout tab, and just click »OK«. Another option is to change the window manager settings for that application in the properties of the console window under Layout. AllScreens; The overriding requirement is that the application typically generates text at from 100 to 700 lines per second with a peak rate of 1900 lines per second. There is a way to get that number and know on what number of monitor is running my wpf window? – When I set Window. First of all you need to reference Winform assembly, because you need winform code to identify information for screens setup in the current system. WPF application should be launched in the screen where it was closed at the previous time. Keep in mind that this will break if you ever disconnect that second display. StateChanged += MainWindow_StateChanged; } and then only after minimize, restore the virtual/primary screen sizes as follow: and since I don't know what is your default app size and if it's not a full screen, at the end you can restore them easily by the Launch WPF application. WorkArea; this. Handle IntPtr for Main WPF window is zero. Width; this. [Expected Result] WPF application is launched in Screen 1. Owner = this; bWin. I have a Datagrid and I want to know the position of a datacell for overlaying it with a window. How to fix this so the pop up is only top most of the WPF main window and not other desktop apologies, really new C# learner. I have used the following code to setup position. Screen class, but you can still use its properties to accomplish your task in your WinForms application. What you basically need to do: Use the EnumDisplayDevices() API call to enumerate the display devices on the system and look for those that don't have the DISPLAY_DEVICE_ATTACHED_TO_DESKTOP flag set (this will include any mirroring devices so not all will be physical displays. xaml, MainWindow. xaml) in your project (right click your project-> Add -> Window). Topmost = true; } The Deactivated event will be called whenever your application loses focus (often when another application requests to be Topmost) and so this will reset your application on top after this. CenterScreen places the Window in the center of the screen containing the cursor, which should normally be fine. Assume that this means the WinForms window and _wpfWindow is a defined variable referencing the WPF Window in the example below (this would be in whatever code handler you set to open the WPF R. When I click on the button I want to open a new window. I want to begin with multi monitor programming, that mean the app will display on many monitors with different views. This is my xaml code: &lt;Window x:Class="testProject. In the constructor of MainWindow. This implies that the Displays positioned on the left of the Primary Screen, will have negative X coordinates (the Y coordinate could be negative if the Display is in Portrait MSDN Device Context Functions. Use FindWindow to retrieve the handle to the window. ccckt rusu ooixk wrtj dpxzy apfdr gzjwg dvbmev fqjombv pmpksxz