NAME
XmConvertStringToUnits — A function that converts a string
specification to a unit value
SYNOPSIS
#include <Xm/Xm.h>
int XmConvertStringToUnits(
Screen *screen,
String spec,
int orientation,
int to_type,
XtEnum *parse_error);
DESCRIPTION
XmConvertStringToUnits converts a string specification value and
returns the converted value as the return value from the function.
This function uses the specified screen’s resolution to compute the
number of units for the string specification.
screen Specifies the screen whose resolution is to be used for the
computation.
spec Specifies the string, in <floating value><unit> format, to be
converted.
orientation
Specifies whether the converter uses the horizontal or
vertical screen resolution when performing the conversion.
The orientation parameter can have values of XmHORIZONTAL or
XmVERTICAL.
to_type Converts the value to the unit type specified. Refer to the
XmNunitType resource of the XmGadget, XmManager, or
XmPrimitive reference page. This parameter can have one of
the following values:
XmPIXELS The returned value will be the number of pixels.
XmMILLIMETERS
The returned value will be the number of
millimeters.
Xm100TH_MILLIMETERS
The returned values will be the number of 1/100
millimeters.
XmCENTIMETERS
The returned values will be the number of
centimeters.
XmINCHES The returned values will be the number of inches.
Xm1000TH_INCHES
The returned values will be the number of 1/100
inches.
XmPOINTS The returned values will be the number of points.
A point is a text processing unit defined as 1/72
of an inch.
Xm100TH_POINTS
The returned values will be the number of 1/100
points.
XmFONT_UNITS
All values provided to the widget are treated as
font units. A font unit has horizontal and vertical
components. These are the values of the XmScreen
resources XmNhorizontalFontUnit and
XmNverticalFontUnit.
Xm100TH_FONT_UNITS
All values provided to the widget are treated as
1/100 of a font unit. A font unit has horizontal
and vertical components. These are the values of
the XmScreen resources XmNhorizontalFontUnit and
XmNverticalFontUnit.
parse_error
Specifies if a parsing error occurred. This is set to a value
of True indicates that an error occurred, a value of False to
indicate no error.
RETURN
Returns the converted value. If a NULL screen, incorrect orientation,
or incorrect unit_type is supplied as parameter data, or if a parsing
error occurred, 0 (zero) is returned.
RELATED
XmConvertUnits(3), XmSetFontUnits(3), and XmScreen(3).
XmConvertStringToUnits(library call)