| -api-id | -api-type |
|---|---|
T:Windows.ApplicationModel.Core.CoreApplication |
winrt class |
Enables apps to handle state changes, manage windows, and integrate with a variety of UI frameworks.
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;
}| Windows version | SDK version | Value added |
|---|---|---|
| 1607 | 14393 | BackgroundActivated |
| 1607 | 14393 | EnablePrelaunch |
| 1607 | 14393 | EnteredBackground |
| 1607 | 14393 | LeavingBackground |
| 1709 | 16299 | RequestRestartAsync |
| 1709 | 16299 | RequestRestartForUserAsync |
COM Processes, Threads, and Apartments, DirectX swap chain implementation sample, CoreApplicationView, Multiple views sample, MTAThreadAttribute