Info Catalog elisp: Frame Layout elisp: Frame Geometry elisp: Size and Position

elisp: Frame Font

 
 28.3.2 Frame Font
 -----------------
 
 Each frame has a “default font” which specifies the default character
 size for that frame.  This size is meant when retrieving or changing the
 size of a frame in terms of columns or lines (Size Parameters).
DONTPRINTYET  It is also used when resizing (Window Sizes) or splitting (*noteDONTPRINTYET  It is also used when resizing (Window Sizes) or splitting (
 Splitting Windows) windows.
 
    The terms “line height” and “canonical character height” are
 sometimes used instead of “default character height”.  Similarly, the
 terms “column width” and “canonical character width” are used instead of
 “default character width”.
 
  -- Function: frame-char-height &optional frame
  -- Function: frame-char-width &optional frame
      These functions return the default height and width of a character
      in FRAME, measured in pixels.  Together, these values establish the
      size of the default font on FRAME.  The values depend on the choice
      of font for FRAME, see Font and Color Parameters.
 
    The default font can be also set directly with the following
 function:
 
  -- Command: set-frame-font font &optional keep-size frames
      This sets the default font to FONT.  When called interactively, it
      prompts for the name of a font, and uses that font on the selected
      frame.  When called from Lisp, FONT should be a font name (a
      string), a font object, font entity, or a font spec.
 
      If the optional argument KEEP-SIZE is ‘nil’, this keeps the number
      of frame lines and columns fixed.  (If non-‘nil’, the option
      ‘frame-inhibit-implied-resize’ described in the next section will
      override this.)  If KEEP-SIZE is non-‘nil’ (or with a prefix
      argument), it tries to keep the size of the display area of the
      current frame fixed by adjusting the number of lines and columns.
 
      If the optional argument FRAMES is ‘nil’, this applies the font to
      the selected frame only.  If FRAMES is non-‘nil’, it should be a
      list of frames to act upon, or ‘t’ meaning all existing and all
      future graphical frames.
 

Info Catalog elisp: Frame Layout elisp: Frame Geometry elisp: Size and Position