Viewing Definition

On this page:

• Basics
• Viewing the definition of a symbol at caret
• Toolbar of the quick definition lookup

Basics

Quick Definition Lookup makes it possible to view definition of a symbol (tag, class, method/function, field, etc.) in a pop-up window.

For markup languages, AppCode retrieves definitions of symbols from the specified DTD or schema. For details, see Markup Languages and StyleSheets.

Viewing the definition of a symbol at caret

Do one of the following:

• On the main menu, choose View | Quick Definition.
• Press ⌃⇧I.
• 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.
	F4	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.