XtConvert(3Xt) X11R5 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 conversion (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 arguments (if any
are needed).
DESCRIPTION
The function looks up the type converter registered to convert
from_type to to_type, computes any additional arguments needed, and
then calls
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 converā
sion was successful, the client should check to_return.address for non-
NULL.
SEE ALSOXtAppAddConverter(3Xt), XtStringConversionWarning(3Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
XtConvert(3Xt)