# SDL_WindowSupportsGPUSwapchainComposition Determines whether a swapchain composition is supported by the window. ## Header File Defined in [<SDL3/SDL_gpu.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_gpu.h) ## Syntax ```c bool SDL_WindowSupportsGPUSwapchainComposition( SDL_GPUDevice *device, SDL_Window *window, SDL_GPUSwapchainComposition swapchain_composition); ``` ## Function Parameters | | | | | ---------------------------------------------------------- | ------------------------- | ----------------------------------- | | [SDL_GPUDevice](SDL_GPUDevice) * | **device** | a GPU context. | | [SDL_Window](SDL_Window) * | **window** | an [SDL_Window](SDL_Window). | | [SDL_GPUSwapchainComposition](SDL_GPUSwapchainComposition) | **swapchain_composition** | the swapchain composition to check. | ## Return Value (bool) Returns true if supported, false if unsupported. ## Remarks The window must be claimed before calling this function. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_ClaimWindowForGPUDevice](SDL_ClaimWindowForGPUDevice) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryGPU](CategoryGPU)