IVirtualSurfaceImageSourceNative interface (windows.ui.xaml.media.dxinterop.h)
Provides the implementation of a large (greater than the screen size) shared surface for DirectX drawing.
Inheritance
The IVirtualSurfaceImageSourceNative interface inherits from ISurfaceImageSourceNative. IVirtualSurfaceImageSourceNative also has these types of members:
Methods
The IVirtualSurfaceImageSourceNative interface has these methods.
| IVirtualSurfaceImageSourceNative::GetUpdateRectCount Gets the total number of regions of the surface that must be updated. |
| IVirtualSurfaceImageSourceNative::GetUpdateRects Gets the set of regions that must be updated on the shared surface. |
| IVirtualSurfaceImageSourceNative::GetVisibleBounds Gets the boundaries of the visible region of the shared surface. |
| IVirtualSurfaceImageSourceNative::Invalidate Invalidates a specific region of the shared surface for drawing. |
| IVirtualSurfaceImageSourceNative::RegisterForUpdatesNeeded Registers for the callback that will perform the drawing when an update to the shared surface is requested. |
| IVirtualSurfaceImageSourceNative::Resize Resizes the surface. |
Remarks
This interface provides the native implementation of the Windows::UI::Xaml::Media::Imaging::VirtualSurfaceImageSource Windows runtime type. To obtain a pointer to IVirtualSurfaceImageSourceNative, you must cast a VirtualSurfaceImageSource instance to IInspectable or IUnknown, and call QueryInterface.
Microsoft::WRL::ComPtr<IVirtualSurfaceImageSourceNative> m_vsisNative;
// ...
IInspectable* vsisInspectable = (IInspectable*) reinterpret_cast<IInspectable*>(virtualSurfaceImageSource);
vsisInspectable->QueryInterface(__uuidof(IVirtualSurfaceImageSourceNative), (void **)&m_vsisNative)
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2012 R2 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | windows.ui.xaml.media.dxinterop.h |