Maximized window mode launches in fullscreen

Hi everyone!

I am currently developing a standalone app, and I need it to be launched as a maximized window (a window that takes the maximal possible space, still displaying the taskbar and window top bar)

In order to do so, I set the Fullscreen Mode parameter from the Player Settings to Maximized Window, logical.

However, when I build my player with this parameter, the app launches in fullscreen mode...

What I checked :

• Screen.fullScreenMode

  is never used in my scripts
• I deleted the register keys associated with the app in Windows' Regedit

Does anyone have a solution to this? Or maybe what I want is not Unity's Maximized Window mode?

Thank you very much for your answers!

 

Hey @TreyK-47 , thanks for your reply!

Just returned to my project to try your solution, but I don't have any "allow fullscreen" parameter in the Player Settings, were you talking about a field named

allowFullscreen

that I should set with a script?

Also by setting fullscreen mode to windowed I have to manually enter the window size in the Player Settings, but what I want is the app to automatically be the biggest possible window, which is as I understand it the definition of the Maximized Window fullscreen mode...

Thanks for your help!

 

Hi @MBlomme, I found a way to maximize the window when starting a standalone Unity game. Simply put this script in your projec and replace "APP_NAME" by a regex that match your Application.productName.

Configure your resolution like this:

 

Hi, I have the same problem.

@TreyK-47 your solution does not work for me. Unity 2019.4.8f1.
Also exiting the full screen window does not work.
So this are actually two Unity bugs I assume.

@kevin-masson your solution resulted in an application hang-up, maybe I did something wrong with the APP_NAME or I should have checked Force Single Instance (which I do not want, I want more instances). Did not attempt to bug trace.

 

I forgot to mention it only work for Windows with single instance.

 

I can't believe that we are in Unity 2020.3.1f1 (LTS) and this same issue existed like 3 years ago in unity versions.

Maximized Window should maximize the window on startup leaving the taskbar showing.

FullScreen should maximize the window on startup taking up the entire monitor screen.

TreyK ? Is this a problem or oversight of unity?


You can achieve this in windows 10 (unity 2020.x) with the following setup and code ...

Resolution Settings
Fullscreen Mode : Fullscreen Window
Default Is Native Resolution : Tick
Mac Retina Support : Not Tick
Run in Background : Tick

Standalone Player Options
Capture Single Screen : Not Tick
Use Player Log : Tick
Resizable Window : Tick
Visible in Background : Tick
Allow Fullscreen Switch : Tick
Force Single Instance : Not Tick
Use DXGI Flip Model Swapchain for D3D11 : Tick

Attach this script to a game object in your hierarchy e.g. ApplicationStart

Code

Code (CSharp):

1. using System;
2. using System.Runtime.InteropServices;
3. using UnityEngine;
4.  
5. namespace VGS.VLR
6. {
7.     public class VR_OnApplicationStart : MonoBehaviour
8.     {
9.         private const int SW_MAXIMIZE = 3;
10.         private const int SW_MINIMIZE = 6;
11.  
12.         [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
13.         private static extern int GetWindowThreadProcessId(HandleRef handle, out int processId);
14.  
15.         private delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
16.  
17.         [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
18.         private static extern bool EnumWindows(EnumWindowsProc callback, IntPtr extraData);
19.  
20.         [DllImport("user32.dll")]
21.         private static extern bool ShowWindow(IntPtr hwnd, int nCmdShow);
22.  
23.         [DllImport("user32.dll")]
24.         private static extern IntPtr GetActiveWindow();
25.  
26.         private HandleRef unityWindowHandle;
27.  
28.         public void Awake()
29.         {
30.             if (!Application.isEditor)
31.             {
32.                 PlayerPrefs.SetInt("Fullscreen mode_h3981298716", 0);
33.                 Screen.fullScreen = false;
34.                 Screen.fullScreenMode = FullScreenMode.Windowed;
35.                 Invoke("MaximizeAppWindow", 0.2f);
36.             }
37.         }
38.  
39.         public void MaximizeAppWindow()
40.         {
41.             EnumWindows(EnumWindowsCallBack, IntPtr.Zero);
42.             ShowWindow(unityWindowHandle.Handle, SW_MAXIMIZE);
43.         }
44.  
45.         public bool EnumWindowsCallBack(IntPtr hWnd, IntPtr lParam)
46.         {
47.             int procid;
48.             GetWindowThreadProcessId(new HandleRef(this, hWnd), out procid);
49.  
50.             int currentPID = System.Diagnostics.Process.GetCurrentProcess().Id;
51.  
52.             new HandleRef(this, System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle);
53.  
54.             if (procid == currentPID)
55.             {
56.                 unityWindowHandle = new HandleRef(this, hWnd);
57.                 return false;
58.             }
59.  
60.             return true;
61.         }
62.     }
63. }

 

Thanks, this works for me

 

2020.3.9f and still is a problem...

 

Hi @GXMark, user32.dll does not work on Apple systems. How should Apple systems handle windows?

 

Still no official fix for that?

 

+1
Still no fix, 2020.3.19

 

+1
still no fix too

 

+1
No fix again, 2020.3.28f1

 

+1
still waiting for fix 2020.3.32f1

 

I have filed a bug report.

 

Sorry, it took a while... I noticed the report got opened for the second time, which seems to be from Unity internal actions.

The setting for Windows is, without reading the documentation, rather unintuitive.

I managed to get my own solution to open the application in a windowed mode and maximize the window upon initialization, but this would be more robust - and probably as important, more intuitive - if it would be part of the window creation routine when *Fullscreen Mode* is set to *Maximized Window*.

 

What was your solution?
It bugs me when unity starts just slightly offcenter in the window. Half the time the players dont realize they should probably maximize. I need a fix.

 

The "Solution" im running with right now is a global variable that knows when the game is first booted up that is checked on the main menu and then it checks if the players has set settings to windowed and if so centers and makes the window slightly smaller than the actual screen size (equal open space on all sides) so the player can cleary see that they should maximize if they want it to take up the whole screen. No window sizes I tried seem to mimic a maximized screen so.

This obviously isnt a problem for players who are in full screen mode. Because full screen is just set to the resolution you give it.

 

These settings are extremely unintuitive and could use some better clarity baked in, even if it was simply changing the names of each option.

 

Still happening nowadays.

The Unity I'm using is 2022.3.4f1 version.

 

Still unresolved... 2022.3.5f1

Consulting the docs it seems this option is Mac Only for some annoying reason??
https://docs.unity3d.com/2022.3/Documentation/Manual/playersettings-windows.html#Resolution

 

Just looking at this forum and thinking why is this still an issue opening a maximized window screen in all platforms?