XtConvert
NAME
XtConvert, XtDirectConvert - invoke resource converters
SYNTAX
void XtConvert(Widget w, String from_type, XrmValuePtr from,
String to_type, XrmValuePtr to_return);
void XtDirectConvert(XtConverter converter, XrmValuePtr args,
Cardinal num_args, XrmValuePtr from, XrmValuePtr to_return);
ARGUMENTS
args
Specifies the argument list .
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 .
DESCRIPTION
The
function looks up the type converter registered to convert from_type
to to_type, computes any additional arguments needed, and then calls
has been replaced by
The
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,
sets the return value size to zero and the return value address to NULL.
To determine if the conversion was successful,
the client should check to_return.address for non-NULL.
has been replaced by
SEE ALSO
XtAppAddConverter(3Xt),
XtStringConversionWarning(3Xt),
XtConvertAndStore(3Xt),
XtCallConverter(3Xt)
