CLion 2022.1 Help

Parameter info popup

The Parameter Info popup shows the parameter names in function calls. CLion automatically shows a popup with all the available signatures within 1 second (1000 milliseconds) after you type an opening bracket in the editor or select a method from the suggestions list.

Parameter info popup

Invoke the parameter info popup manually

You can manually invoke the popup if it has closed or if the IDE is configured not to show the popup automatically.

  • Press Ctrl+P (or click View | Parameter Info).

Configure the parameter info popup

  1. Go to Settings / Preferences | Editor | General | Code Completion.

  2. In the Show the parameter info popup in ... milliseconds field, specify the time in milliseconds after which the popup should appear.

    If you don't want the popup to appear automatically, clear the Show the parameter info popup in ... milliseconds checkbox.

    Parameter info popup settings

Show full signatures

By default, the parameter info popup shows simple signatures. You can configure the IDE to show full signatures that include function names and returned types.

  1. Go to Settings / Preferences | Editor | General | Code Completion.

  2. Set the Show full method signatures checkbox.

    Show full signature
Last modified: 20 February 2022