# SDL_WaitForGPUIdle Blocks the thread until the GPU is completely idle. ## 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_WaitForGPUIdle( SDL_GPUDevice *device); ``` ## Function Parameters | | | | | -------------------------------- | ---------- | -------------- | | [SDL_GPUDevice](SDL_GPUDevice) * | **device** | a GPU context. | ## Return Value (bool) Returns true on success, false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_WaitForGPUFences](SDL_WaitForGPUFences) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryGPU](CategoryGPU)