How to fetch data of display resolution and display orientation in Winui3

Question

How to fetch data of display resolution and display orientation in Winui3

mohan Raj 6

Hi i am working on an winui3 application , My requirement is that i have two combo box name display resolution and display orientation.

For the both combo box i need to add values from display setting like need to fetch the value of display resolution and orientation from the settings.

thanks in advance

Answer 1

Castorix31 79,921

I posted a test code with EnumDisplaySettingsEx in your thread on Github : https://github.com/microsoft/microsoft-ui-xaml/issues/8437

mohan Raj 6 Reputation points

2023-05-01T13:48:39.52+00:00

This code will display the current selected resolution and orientation, But the things is for me i need to fetch all the data's like ["1920x1080", "1680x1050", "1600x900", "1366x768"] from display settings and i need to add this data's to my combobox

Castorix31 79,921

I added a loop, with a ComboBox cmb1 :

 {
            System.Collections.ObjectModel.ObservableCollection<string> resolutions = new System.Collections.ObjectModel.ObservableCollection<string>();
            bool bRet = true;
            int nModeNum = 0;
            while (bRet)
            {
                DEVMODE devmode = new DEVMODE();
                devmode.dmSize = (short)Marshal.SizeOf(typeof(DEVMODE));
                bRet = EnumDisplaySettingsEx(IntPtr.Zero, nModeNum, ref devmode, 0);                   
                if (bRet)
                {  
                    string sItem = devmode.dmPelsWidth.ToString() + " x " + devmode.dmPelsHeight.ToString();
                    if (!resolutions.Any(x => x == sItem))
                        resolutions.Add(sItem);
                    nModeNum++;
                }
            }
            cmb1.ItemsSource = resolutions;
        }

mohan Raj 6 Reputation points

2023-05-02T08:38:42.8766667+00:00
This works fine , but the issue is that i dont want to place my combobox inside a mainwindow => instead of window i need to use usercontrol and inside usercontrol i need to place my combox , in this case how the below code can be used inside a usercontrol.xaml.cs constructor.

MainWindow.WndProc._coreWindowHwnd = WinRT.Interop.WindowNative.GetWindowHandle(this); _oldWndProc = MainWindow.WndProc.SetWndProc(WindowProcess);
Castorix31 79,921 Reputation points

2023-05-02T09:34:23.04+00:00

I don't see why you add this code, which is a subclassing of a main Win32 window...

Controls inside a UserControl can be referenced by their name or with Binding

For example, a UserControl (Button like) where I set an Image as child : https://github.com/castorix/WinUI3_MediaEngine/blob/master/CImageButton.xaml

How to fetch data of display resolution and display orientation in Winui3

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