Application Development with Qt Creator(Second Edition)
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A review – running and debugging your application

You'll spend a lot of time editing, compiling, and debugging your code in Qt Creator, so it's wise to remember the following basics:

  • The arrow key runs your application without the debugger; to debug your application, choose the arrow key with the bug icon on it.
  • You can switch between the Editor view and the Debug view of your application by clicking on the Edit or Debug view choice on the left-hand side; if you debug your application, Qt Creator will enter the Debug view automatically.
  • There's more to breakpoints than just stopping at a line of code! Use data breakpoints to pin down weird bugs that occur only sometimes or to quickly skip over the first bazillion items of a large loop.
  • The variable pane lets you see more than just the contents of variables; you can also add expressions composed of several variables and arithmetic or view arbitrary memory locations.
  • Want to hack around a bug during a debugging session? You can change the values of variables in the variable pane and continue running, changing the program's state as you go.