###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_WaitForGPUSwapchain Blocks the thread until a swapchain texture is available to be acquired. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_gpu.h) ## Syntax ```c bool SDL_WaitForGPUSwapchain( SDL_GPUDevice *device, SDL_Window *window); ``` ## Function Parameters | | | | | -------------------------------- | ---------- | ------------------------------- | | [SDL_GPUDevice](SDL_GPUDevice) * | **device** | a GPU context. | | [SDL_Window](SDL_Window) * | **window** | a window that has been claimed. | ## Return Value (bool) Returns true on success, false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Thread Safety This function should only be called from the thread that created the window. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_AcquireGPUSwapchainTexture](SDL_AcquireGPUSwapchainTexture) - [SDL_WaitAndAcquireGPUSwapchainTexture](SDL_WaitAndAcquireGPUSwapchainTexture) - [SDL_SetGPUAllowedFramesInFlight](SDL_SetGPUAllowedFramesInFlight) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryGPU](CategoryGPU)