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SetFractEnable
SetFractEnable Enable/disable use of fractional character widths
#include <Fonts.h> Font Manager
void SetFractEnable(useFract );
Boolean useFract ; TRUE=use fixed-point sizes; FALSE=use int
SetFractEnable controls the use of fractional character widths for drawing
text. By default, fractional widths are disabled.
useFract is a Boolean specifying whether to enable or disable use of fractional
character widths. It is one of:
FALSE Disable. All sizes are rounded to integers.
TRUE Enable. Use fixed-point calculations in all operations that
determine character placement.
Returns: none
Notes: SetFractEnable affects functions that draw text (such as
DrawString ), and functions that calculate character widths (such as
TextWidth, CharWidth, and MeasureText ).
The 64K ROMs do not support fractional character widths; so all
characters are sized in typo graphical points (increments of 1/72nd of an
inch).
Use SetFractEnable(TRUE) before printing to the laser printer or other
high-resolution device or when writing in a "page-preview" window. At
other times, leave fractional positioning off for faster calculations.
C and ASM programmers are advised to use this routine rather than
bypassing it by setting the byte-length global variable FractEnable (at
0x0BF4) to 0xFF (TRUE) or 0x00 (FALSE). Note: Be sure you're running
on the 128K ROMs or later (see Gestalt).
Referenced by (5):