| -api-id | M:Windows.UI.Xaml.Hosting.WindowsXamlManager.InitializeForCurrentThread |
|---|---|
| -api-type | winrt method |
| ms.custom | RS5, 19H1 |
Initializes the UWP XAML framework in a non-UWP desktop application (for example, a WPF or Windows Forms application) on the current thread.
Equivalent WinUI method: Microsoft.UI.Xaml.Hosting.WindowsXamlManager.InitializeForCurrentThread.
An object that contains a reference to the UWP XAML framework.
Call this method to initialize the internal UWP XAML framework for the current thread in a desktop application in which you want to host Windows.UI.Xaml.UIElement objects in a DesktopWindowXamlSource. Call this method if your application creates the Windows.UI.Xaml.UIElement objects before it creates the DesktopWindowXamlSource object that will host them, or if your program uses XAML from more than one thread.
This method must be called before creating the DesktopWindowXamlSource on the thread.
This method returns a WindowsXamlManager object that contains a reference to the UWP XAML framework for the current thread. It is safe to call this method multiple times, it will return the same instance if one is active. You must destroy the instance after destroying the DesktopWindowXamlSource instances. Note, after releasing this object a message loop must be run to finish the resource rundown, otherwise the associated resources will be leaked.
// Break the cycle between the WindowsXamlManager and the DesktopWindowXamlSource.
m_xamlSource.Close();
m_xamlManager = nullptr;
// Drain the message queue after releasing WindowsXamlManager since rundown is async
while (PeekMessageW(&msg, nullptr, 0, 0, PM_REMOVE))
{
::DispatchMessageW(&msg);
}