search
HomeBackend DevelopmentC++How to Efficiently Get the Current Screen's Dimensions in WPF?

How to Efficiently Get the Current Screen's Dimensions in WPF?

WPF: Acquiring the Current Screen's Dimensions

Retrieving the size of the primary screen is straightforward using SystemParameters, but determining the size of the current screen can be more complex, especially in multi-screen configurations. To address this challenge, consider the following approach:

Utilizing a WinForms Screen Wrapper

Creating a WPF-compatible wrapper around the System.Windows.Forms.Screen object provides a convenient way to access screen-related information. Here's an example implementation:

public class WpfScreen
{
    public static IEnumerable<wpfscreen> AllScreens()
    {
        foreach (Screen screen in System.Windows.Forms.Screen.AllScreens)
        {
            yield return new WpfScreen(screen);
        }
    }

    public static WpfScreen GetScreenFrom(Window window)
    {
        WindowInteropHelper windowInteropHelper = new WindowInteropHelper(window);
        Screen screen = System.Windows.Forms.Screen.FromHandle(windowInteropHelper.Handle);
        WpfScreen wpfScreen = new WpfScreen(screen);
        return wpfScreen;
    }

    public static WpfScreen GetScreenFrom(Point point)
    {
        int x = (int)Math.Round(point.X);
        int y = (int)Math.Round(point.Y);
        System.Drawing.Point drawingPoint = new System.Drawing.Point(x, y);
        Screen screen = System.Windows.Forms.Screen.FromPoint(drawingPoint);
        WpfScreen wpfScreen = new WpfScreen(screen);
        return wpfScreen;
    }

    public static WpfScreen Primary
    {
        get { return new WpfScreen(System.Windows.Forms.Screen.PrimaryScreen); }
    }

    private readonly Screen screen;

    internal WpfScreen(System.Windows.Forms.Screen screen)
    {
        this.screen = screen;
    }

    public Rect DeviceBounds
    {
        get { return this.GetRect(this.screen.Bounds); }
    }

    public Rect WorkingArea
    {
        get { return this.GetRect(this.screen.WorkingArea); }
    }

    private Rect GetRect(Rectangle value)
    {
        return new Rect
        {
            X = value.X,
            Y = value.Y,
            Width = value.Width,
            Height = value.Height
        };
    }

    public bool IsPrimary
    {
        get { return this.screen.Primary; }
    }

    public string DeviceName
    {
        get { return this.screen.DeviceName; }
    }
}</wpfscreen>

Accessing Screen Dimensions in XAML

While accessing the screen size from XAML is not directly possible, you can utilize attached properties in combination with the wrapper class:

<usercontrol>
    <usercontrol.resources>
        <wpfscreenextension x:key="ScreenExtension"></wpfscreenextension>
    </usercontrol.resources>

    <stackpanel>
        <textblock text="Device Bounds Width: {Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=Width, Converter={StaticResource ScreenExtension}}" verticalalignment="Center"></textblock>
        <textblock text="Working Area Height: {Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=Height, Converter={StaticResource ScreenExtension}}" verticalalignment="Center"></textblock>
    </stackpanel>
</usercontrol>
public class WpfScreenExtension : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        UserControl userControl = value as UserControl;
        if (userControl == null)
            return null;

        Rect bounds = WpfScreen.GetScreenFrom(userControl).DeviceBounds;
        if (bounds.IsEmpty)
            return String.Empty;

        if (parameter?.ToString() == "Width")
            return bounds.Width;
        else if (parameter?.ToString() == "Height")
            return bounds.Height;
        else
            return bounds;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return null;
    }
}

The above is the detailed content of How to Efficiently Get the Current Screen's Dimensions in WPF?. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What is static analysis in C?What is static analysis in C?Apr 28, 2025 pm 09:09 PM

The application of static analysis in C mainly includes discovering memory management problems, checking code logic errors, and improving code security. 1) Static analysis can identify problems such as memory leaks, double releases, and uninitialized pointers. 2) It can detect unused variables, dead code and logical contradictions. 3) Static analysis tools such as Coverity can detect buffer overflow, integer overflow and unsafe API calls to improve code security.

C   Interview Questions and Answers: Ace Your Next Technical AssessmentC Interview Questions and Answers: Ace Your Next Technical AssessmentApr 28, 2025 am 12:10 AM

C In interviews, smart pointers are the key tools that help manage memory and reduce memory leaks. 1) std::unique_ptr provides exclusive ownership to ensure that resources are automatically released. 2) std::shared_ptr is used for shared ownership and is suitable for multi-reference scenarios. 3) std::weak_ptr can avoid circular references and ensure secure resource management.

The Future of C  : Adaptations and InnovationsThe Future of C : Adaptations and InnovationsApr 27, 2025 am 12:25 AM

The future of C will focus on parallel computing, security, modularization and AI/machine learning: 1) Parallel computing will be enhanced through features such as coroutines; 2) Security will be improved through stricter type checking and memory management mechanisms; 3) Modulation will simplify code organization and compilation; 4) AI and machine learning will prompt C to adapt to new needs, such as numerical computing and GPU programming support.

The Longevity of C  : Examining Its Current StatusThe Longevity of C : Examining Its Current StatusApr 26, 2025 am 12:02 AM

C is still important in modern programming because of its efficient, flexible and powerful nature. 1)C supports object-oriented programming, suitable for system programming, game development and embedded systems. 2) Polymorphism is the highlight of C, allowing the call to derived class methods through base class pointers or references to enhance the flexibility and scalability of the code.

C# vs. C   Performance: Benchmarking and ConsiderationsC# vs. C Performance: Benchmarking and ConsiderationsApr 25, 2025 am 12:25 AM

The performance differences between C# and C are mainly reflected in execution speed and resource management: 1) C usually performs better in numerical calculations and string operations because it is closer to hardware and has no additional overhead such as garbage collection; 2) C# is more concise in multi-threaded programming, but its performance is slightly inferior to C; 3) Which language to choose should be determined based on project requirements and team technology stack.

C  : Is It Dying or Simply Evolving?C : Is It Dying or Simply Evolving?Apr 24, 2025 am 12:13 AM

C isnotdying;it'sevolving.1)C remainsrelevantduetoitsversatilityandefficiencyinperformance-criticalapplications.2)Thelanguageiscontinuouslyupdated,withC 20introducingfeatureslikemodulesandcoroutinestoimproveusabilityandperformance.3)Despitechallen

C   in the Modern World: Applications and IndustriesC in the Modern World: Applications and IndustriesApr 23, 2025 am 12:10 AM

C is widely used and important in the modern world. 1) In game development, C is widely used for its high performance and polymorphism, such as UnrealEngine and Unity. 2) In financial trading systems, C's low latency and high throughput make it the first choice, suitable for high-frequency trading and real-time data analysis.

C   XML Libraries: Comparing and Contrasting OptionsC XML Libraries: Comparing and Contrasting OptionsApr 22, 2025 am 12:05 AM

There are four commonly used XML libraries in C: TinyXML-2, PugiXML, Xerces-C, and RapidXML. 1.TinyXML-2 is suitable for environments with limited resources, lightweight but limited functions. 2. PugiXML is fast and supports XPath query, suitable for complex XML structures. 3.Xerces-C is powerful, supports DOM and SAX resolution, and is suitable for complex processing. 4. RapidXML focuses on performance and parses extremely fast, but does not support XPath queries.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Atom editor mac version download

Atom editor mac version download

The most popular open source editor