How to fix AppWindow.TitleBar.SetDragRectangles not working in Windows App SDK 1.4.230822000?

Question

How to fix AppWindow.TitleBar.SetDragRectangles not working in Windows App SDK 1.4.230822000?

Rwagsu 80

As shown in the image, I wrote these codes, which contain AppWindow.TitleBar.SetDragRectangles, and I'm sure that this code is working correctly, but these codes are not doing what they are supposed to do. d10dc2ef7a9afd41a709e8c749506bab

Why is this? I would like an answer from Microsoft, please!

By the way, I've heard that this is also affected by the DPI of the screen, how can I avoid this problem?

Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-11T07:51:26.0666667+00:00

I cannot reproduce with the Windowing sample. Can you reproduce with the sample?
Rwagsu 80 Reputation points

2023-09-11T08:53:55.1+00:00

Oh, I raised an issue on GitHub that you can refer to.

https://github.com/microsoft/WindowsAppSDK/issues/3845
Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-11T09:29:41.26+00:00

I still cannot reproduce.
Rwagsu 80 Reputation points

2023-09-11T10:59:10.4+00:00

If so, you can use the app I developed to test the title bar, which uses Windows App SDK 1.4 and should reproduce this problem.

If it still doesn't work, then this may be a problem with the system.

You need to open my repository, switch to the Preview branch, then open the entire project with Visual Studio, manually install the Community Toolkit Labs NuGet package, and start running, if SetDragRectangles doesn't work, then you can't click the two buttons in the upper left corner.

https://github.com/BadMC-Studio/BadMcen-Launcher

Answer accepted by question author

2 additional answers

Your answer

Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-11T07:51:26.0666667+00:00

I cannot reproduce with the Windowing sample. Can you reproduce with the sample?
Rwagsu 80 Reputation points

2023-09-11T08:53:55.1+00:00

Oh, I raised an issue on GitHub that you can refer to.

https://github.com/microsoft/WindowsAppSDK/issues/3845
Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-11T09:29:41.26+00:00

I still cannot reproduce.
Rwagsu 80 Reputation points

2023-09-11T10:59:10.4+00:00

If so, you can use the app I developed to test the title bar, which uses Windows App SDK 1.4 and should reproduce this problem.

If it still doesn't work, then this may be a problem with the system.

You need to open my repository, switch to the Preview branch, then open the entire project with Visual Studio, manually install the Community Toolkit Labs NuGet package, and start running, if SetDragRectangles doesn't work, then you can't click the two buttons in the upper left corner.

https://github.com/BadMC-Studio/BadMcen-Launcher

Answer 1

Castorix31 91,501

so now I'm starting to wonder if Microsoft introduced some way to replace this "deprecated" SetDragRectangles?

It has been replaced by InputNonClientPointerSource

I tested by updating MSDN sample and it seems to work (still on Windows 10 only)

 IntPtr hWndMain = WinRT.Interop.WindowNative.GetWindowHandle(this);
 Microsoft.UI.WindowId myWndId = Microsoft.UI.Win32Interop.GetWindowIdFromWindow(hWndMain);
 var incps = InputNonClientPointerSource.GetForWindowId(myWndId);
 // In SetDragRegionForCustomTitleBar, same MSDN code with dragRectsList... dragRects
 incps.SetRegionRects(NonClientRegionKind.Caption, dragRects);

JohnDizzle 0 Reputation points

2023-12-05T07:58:44.3266667+00:00

I am getting a invalid cast exception.

WindowsAppSdk 1.4.231115000

net8.0-windows10.0.19041.0

Exception thrown: 'System.InvalidCastException' in System.Private.CoreLib.dll

Exception thrown at 0x00007FFDFDA2CF19 (KernelBase.dll) in WebDive.exe: WinRT originate error - 0x80004002 : 'Specified cast is not valid.'.

Microsoft.ui.xaml.dll!00007FFD4E3D9A1E: CallContext:[\ImageDecodeActivity] 80004002 - No such interface supported

The program '[27812] WebDive.exe' has exited with code 0 (0x0).
JohnDizzle 0 Reputation points

2023-12-05T07:59:57.8366667+00:00

this is the debug view

Xiaopo Yang - MSFT 12,736 Microsoft External Staff

I cannot reproduce with the following code.

IntPtr hWndMain = WinRT.Interop.WindowNative.GetWindowHandle(this);
            Microsoft.UI.WindowId myWndId = Microsoft.UI.Win32Interop.GetWindowIdFromWindow(hWndMain);
            var incps = InputNonClientPointerSource.GetForWindowId(myWndId);
            // In SetDragRegionForCustomTitleBar, same MSDN code with dragRectsList... dragRects
            var appWindow = this.AppWindow;
            appWindow.TitleBar.ExtendsContentIntoTitleBar = true;
            //Set the window drag area
            if (AppWindowTitleBar.IsCustomizationSupported() && appWindow.TitleBar.ExtendsContentIntoTitleBar)
                incps.SetRegionRects(NonClientRegionKind.Caption, new RectInt32[] { new RectInt32(0, 0, 100, 40) });

Answer 2

Castorix31 91,501

Where is the code with IsCustomizationSupported and ExtendsContentIntoTitleBar ?

Like in MSDN sample : https://learn.microsoft.com/en-us/windows/apps/develop/title-bar?tabs=wasdk#interactive-content

Rwagsu 80 Reputation points

2023-09-08T06:38:18.7433333+00:00

Here, I am using AppWindow.
Castorix31 91,501 Reputation points

2023-09-08T09:00:25.8033333+00:00

Are you sure SetDragRectangles is correct (it starts at x = 80) ?

If I copy/paste the MSDN sample (I added a rect rectangle to check the caption size, height = 48 in the sample), it seems to work fine for me (Windows 10 22H2) :

)
Rwagsu 80 Reputation points

2023-09-08T10:53:33.7666667+00:00

I think I'm right because it works fine with Windows App SDK 1.3.

Answer 3

Xiaopo Yang - MSFT 12,736 Microsoft External Staff

What @Castorix31 suspects is reasonable.

Call SetDragRectangles only after you check IsCustomizationSupported and ExtendsContentIntoTitleBar to confirm that a custom title bar is supported and being used.

Change to

            m_appWindow.TitleBar.ExtendsContentIntoTitleBar = true;
            //Set the window drag area
            if (AppWindowTitleBar.IsCustomizationSupported() && m_appWindow.TitleBar.ExtendsContentIntoTitleBar)
                m_appWindow.TitleBar.SetDragRectangles(new RectInt32[]{new RectInt32(800, 0, ScreenWidth - 80, 40)});

GIF 9-12-2023 10-00-07 AM

Rwagsu 80 Reputation points

2023-09-12T03:57:16.2+00:00

Unfortunately this doesn't work on my computer :(

The draggable area of the title bar remains in its default state instead of its custom state.

So, I went to collect some information and found that SetDragRectangles was marked as "deprecated", and I found that your systems are all Windows 10, only I am Windows 11...

But after I packaged the app to Windows 10, it still hasn't changed.

I don't know what's going on now, it's weird, it seems like only my computer will have a problem, so now I'm starting to wonder if Microsoft introduced some way to replace this "deprecated" SetDragRectangles?
Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-12T05:14:45.36+00:00

My system is Windows 11 Enterprise 22H2, OS build 22621.2134. I also cannot reproduce using your application. If there are, it should be highlighted at AppWindowTitleBar.SetDragRectangles(RectInt32[]).
Rwagsu 80 Reputation points

2023-09-12T08:48:30.6233333+00:00

If so, I temporarily publish an app, you download and run it, and see if the above problem occurs.

https://github.com/BadMC-Studio/BadMcen-Launcher/releases/tag/Preview(Canary)-0.0.1

Thank you for your patience!
Rwagsu 80 Reputation points

2023-09-12T12:11:15.8833333+00:00

Thank you! I did it!
Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-13T08:55:08.13+00:00

The published application which behaves like the build in my answer also cannot reproduce the behavior. Does @Castorix31 's workaround work for you?
Rwagsu 80 Reputation points

2023-09-13T11:10:57.1233333+00:00

Yes, I did it, I swapped out the code and made changes.

😉
Xiaopo Yang - MSFT 12,736 Reputation points Microsoft External Staff

2023-09-14T01:19:46.5866667+00:00

@Starcloudsea, do you consider completing the question?
Rwagsu 80 Reputation points

2023-09-14T01:22:00.0433333+00:00

Oh, I'm sorry. I forgot.

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How to fix AppWindow.TitleBar.SetDragRectangles not working in Windows App SDK 1.4.230822000?

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