- Qt Creator Documentation
- Debugger Log
- Qt Creator 18.0.2

Debug Mode Views ◦ Evaluating expressions

# Debugger Log

You can view debug output in the Debugger Log view to troubleshoot the debugger.

If debug output is sent to the system log, go to Preferences > Debugger > General and select Force logging to console.

Right-click the view to select the following actions:

- Copy, paste, cut, and delete log contents.
- Undo and redo editing actions.
- Select all log contents.
- Clear log contents.
- Save log contents as a file.
- Log time stamps.
- Reload debugging helpers after adding custom debugging helpers.
- Set debugger preferences.

## Directly Interacting with Debuggers

You can use the left pane of the Debugger Log view to directly interact with the command line of the debugger.

Select Ctrl+Enter to send the contents of the line under the text cursor to the debugger. Or, enter the command in the Command field. The right side pane of the Debugger Log view shows the command output.

Note: Usually, you do not need this feature because Qt Creator offers better ways to handle the task. For example, instead of using the GDB `print` command from the command line, you can evaluate an expression in the Expressions view.

See also How To: Debug, Debugging, Debuggers, and Debugger.