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 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  XtConvert  function looks up the type converter registered to convert from_type to to_type, computes
       any additional 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   XtConvert  has  been  replaced  by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, XtDirectConvert 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.  XtDirectConvert has been replaced by XtCallConverter.

SEE ALSO

       XtAppAddConverter(3), XtStringConversionWarning(3), XtConvertAndStore(3), XtCallConverter(3)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11                                       libXt 1.1.5                                      XtConvert(3)