Viewing Definition
On this page:
Basics
Quick Definition Lookup makes it possible to view definition of a symbol (tag, class, method/function, field, etc.) in a pop-up window.
Viewing the definition of a symbol at caret
Do one of the following:
- On the main menu, choose .
- Press ⌥Space.
- Keeping the ⌃ key pressed, point with your mouse cursor to the symbol of interest, so that it turns to a hyperlink, with the definition of the symbol displayed in a tooltip. Clicking this hyperlink results in opening the respective definition page in the editor.
Toolbar of the quick definition lookup
Use the icons on the toolbar of the pop-up window to navigate to the source code of the definition and view its usages.
| Icon | Keyboard shortcut | Action |
|---|---|---|
  | ⌃⇧← ⌃⇧→ | Navigate to the previous/next screen in the definition pop-up window after using hyperlinks in the definition. You can also use the three-finger right-to-left and left-to-right swipe gestures. |
 | ⌘↓ | Open the source code of the definition for editing, and close the quick definition lookup window. |
 | ⌘⏎ | Open the source code of the definition, and preserve the quick definition lookup window opened. |
Last modified: 27 March 2018