# tmuxtest.ControlMode.Read

- **Module:** tmuxtest.ControlMode
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/tmuxtest/control.go#L106
- **Page:** https://libtmux.org/reference/go/tmuxtest-controlmode-read/

```
tmuxtest.ControlMode.Read(ctx: context.Context, data: []byte) -> (int, error)
```

Read reads control-protocol output within ctx. Exactly one caller may read at a time. After the client exits, callers may drain preserved output through [io.EOF]; after [ControlMode.Close], a non-empty Read returns [os.ErrClosed]. It returns ctx errors while waiting for output.