# 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 suggestion list.

CLion shows parameter info for C/C++ and [CMake](cmakelists-txt-file.html#code-insight-cmake).

![Parameter info popup](https://resources.jetbrains.com/help/img/idea/2026.2/cl_param_info.png)

Procedure: 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](#configure-parameter-info-popup).

* Press `Ctrl+P` (Windows), `⌘ P` (macOS), `⌘ P` (IntelliJ IDEA Classic (macOS)), `⌘ P` (macOS System Shortcuts), `Ctrl+P` (XWin), `Ctrl+P` (GNOME), `Ctrl+P` (KDE), `Alt+Shift+P` (Emacs), `Ctrl+P` (Sublime Text), `Ctrl+P` (Sublime Text (macOS)), `⌘ ⇧ P` (Xcode), `Ctrl+Shift+Space` (Visual Studio), `⌘ P` (Visual Studio (macOS)), `Ctrl+P` (ReSharper), `⌘ P` (ReSharper (macOS)), `Ctrl+P` (QtCreator), `Ctrl+P` (QtCreator (macOS)), `Ctrl+P` (NetBeans), `Ctrl+P` (Eclipse), `⌃ ⇧ Space` (Eclipse (macOS)) (or click `View | Parameter Info`).

Procedure: Configure the parameter info popup

1. Go to `Settings | Editor | General | Code Completion | Popup`.

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](https://resources.jetbrains.com/help/img/idea/2026.2/cl_paraminfo_popup_settings.png)

Procedure: 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 | Editor | General | Code Completion | Popup`.

2. Set the Show full method signatures checkbox.

![Show full signature](https://resources.jetbrains.com/help/img/idea/2026.2/cl_paraminfo_showfullsign_settings.png)

## See also

### Concepts

### Procedures

, , . [Code completion](auto-completing-code.html)