IVirtualSurfaceUpdatesCallbackNative::UpdatesNeeded method (windows.ui.xaml.media.dxinterop.h)
Performs the drawing behaviors when an update to VirtualSurfaceImageSource is requested.
Syntax
HRESULT UpdatesNeeded();
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
This method is implemented by the developer.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 [UWP apps only] |
| Minimum supported server | Windows Server 2012 R2 [UWP apps only] |
| Target Platform | Windows |
| Header | windows.ui.xaml.media.dxinterop.h |
| DLL | Windows.UI.Xaml.dll |