# SDL_BeginGPUCopyPass

Begins a copy pass on a command buffer.

## Header File

Defined in [<SDL3/SDL_gpu.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_gpu.h)

## Syntax

```c
SDL_GPUCopyPass * SDL_BeginGPUCopyPass(
    SDL_GPUCommandBuffer *command_buffer);
```

## Function Parameters

|                                                |                    |                   |
| ---------------------------------------------- | ------------------ | ----------------- |
| [SDL_GPUCommandBuffer](SDL_GPUCommandBuffer) * | **command_buffer** | a command buffer. |

## Return Value

([SDL_GPUCopyPass](SDL_GPUCopyPass) *) Returns a copy pass handle.

## Remarks

All operations related to copying to or from buffers or textures take place
inside a copy pass. You must not begin another copy pass, or a render pass
or compute pass before ending the copy pass.

## Version

This function is available since SDL 3.2.0.

## See Also

- [SDL_EndGPUCopyPass](SDL_EndGPUCopyPass)

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[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryGPU](CategoryGPU)