VKERRORSURFACELOSTKHR

VKERRORSURFACELOSTKHR is a specific error code encountered within the Vulkan graphics API. It indicates that a presentation surface has become unavailable or lost, preventing further rendering operations to that surface. This typically occurs when the window or display associated with the presentation surface is destroyed, minimized, or undergoes a change that invalidates its existence.

When this error is returned by a Vulkan function, it signifies that the application needs to handle the surface loss event. This usually involves re-creating the presentation surface and any associated Vulkan objects that depend on it, such as swapchains and framebuffers. The application should detect this error and initiate a recovery process. Failing to do so can lead to application crashes or unresponsiveness.

Common scenarios leading to VKERRORSURFACELOSTKHR include the user closing the application window, resizing the window in a way that forces a recreation, or a display driver issue. Robust Vulkan applications must implement logic to gracefully handle this error by releasing and then re-acquiring the necessary Vulkan resources. This ensures the application can continue to function or be reset appropriately after the surface is restored or recreated.