XmConvertStringToUnits — A function that converts a
string specification to a unit value "XmConvertStringToUnits"
#include <Xm/Xm.h>
int XmConvertStringToUnits(
Screen *screen,
String spec,
int orientation,
int to_type,
XtEnum *parse_error);
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.
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.