font

Arguments: standard-object

Returns the current value of the font property for standard-object. This property determines which font to use when displaying text on the object. A font is created using make-font, make-font-ex, or ask-user-for-font.

The value should be a font object, as returned by make-font-ex, make-font, or ask-user-for-font.

font is a property of graphical-stream (which includes all windows as well as bitmap-streams and printer streams) and dialog-item (which includes all widgets), as well as outline-item and grid-column. font is not a property of menus, at least on the Windows platform, because Windows uses a single Control Panel font for all menus.

(setf font) can take an additional optional argument called set-line-height-too. If this argument is true, then (setf font) will set the current line-height of the window or widget to be equal to the font-height of its new font. This is normally desirable so that printing a newline to the stream will position the next line of text appropriately, so this argument defaults to t. The default could be overridden, though, with a form such as (setf (font my-window nil)(make-font-ex nil "Arial" 18)).

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Created 2019.8.20.