CoreApplication Class

Definition

public ref class CoreApplication abstract sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class CoreApplication final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public static class CoreApplication

Public Class CoreApplication

Inheritance

Object Platform::Object IInspectable CoreApplication

Attributes

ContractVersionAttribute MarshalingBehaviorAttribute

Windows requirements

Remarks

The system creates this object as a singleton when it runs the app. It is run as an Application Single-Threaded Apartment (ASTA). Threads created from the app singleton, such as the view provider (seen in the sample below), should be attributed as Multi-Threaded Apartment (MTAThread).

This API is supported in Universal Windows Platform apps only, except for the Properties property, which is always available.

struct App : implements<App, IFrameworkViewSource, IFrameworkView>
{
public:
    IFrameworkView CreateView()
    {
        return *this;
    }
};

...

int __stdcall wWinMain(HINSTANCE, HINSTANCE, PWSTR, int)
{
    Windows::ApplicationModel::Core::CoreApplication::Run(App());
}

ref class MyFrameworkViewSource : IFrameworkViewSource
{
public:
    virtual IFrameworkView^ CreateView()
    {
        return ref new MyFrameworkView();
    }
};

// ...

[Platform::MTAThread]
int main(Platform::Array<Platform::String^>^)
{
    auto frameworkViewSource = ref new MyFrameworkViewSource();
    Windows::ApplicationModel::Core::CoreApplication::Run(frameworkViewSource);
    return 0;
}

internal class ApplicationSource : IFrameworkViewSource
{
	public virtual IFrameworkView CreateView()
	{
		return new CoreApp();
	}
}

...

[MTAThread]
public static int Main()
{
	var appSource = new ApplicationSource();
	CoreApplication.Run(appSource);
	return 0;
}

Version history

See also

• CoreApplicationView
• COM Processes, Threads, and Apartments
• DirectX swap chain implementation sample
• Multiple views sample
• MTAThreadAttribute