XtConvert(3Xt) XT COMPATIBILITY FUNCTIONS XtConvert(3Xt)NAME
XtConvert, XtDirectConvert - invoke resource converters
SYNTAX
void XtConvert(w, from_type, from, to_type, to_return)
Widget w;
String from_type;
XrmValuePtr from;
String to_type;
XrmValuePtr to_return;
void XtDirectConvert(converter, args, num_args, from,
to_return)
XtConverter converter;
XrmValuePtr args;
Cardinal num_args;
XrmValuePtr from;
XrmValuePtr to_return;
ARGUMENTS
args Specifies the argument list that contains the
additional arguments needed to perform the con-
version (often NULL).
converter Specifies the conversion procedure that is to be
called.
from Specifies the value to be converted.
from_type Specifies the source type.
num_args Specifies the number of additional arguments
(often zero).
to_type Specifies the destination type.
to_return Returns the converted value.
w Specifies the widget to use for additional argu-
ments (if any are needed).
DESCRIPTION
The XtConvert function looks up the type converter regis-
tered to convert from_type to to_type, computes any addi-
tional arguments needed, and then calls XtDirectConvert.
XtConvert has been replaced by XtConvertAndStore.
The XtDirectConvert function looks in the converter cache
to see if this conversion procedure has been called with
the specified arguments. If so, it returns a descriptor
for information stored in the cache; otherwise, it calls
the converter and enters the result in the cache.
Before calling the specified converter, XtDirectConvertX Version 11 Release 6.4 1
XtConvert(3Xt) XT COMPATIBILITY FUNCTIONS XtConvert(3Xt)
sets the return value size to zero and the return value
address to NULL. To determine if the conversion was suc-
cessful, the client should check to_return.address for
non-NULL. XtDirectConvert has been replaced by
XtCallConverter.
SEE ALSOXtAppAddConverter(3Xt), XtStringConversionWarning(3Xt),
XtConvertAndStore(3Xt), XtCallConverter(3Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 Release 6.4 2