NAME

       XtConvert, XtDirectConvert - invoke resource converters

SYNTAX

       #include <X11/Intrinsic.h>

       void XtConvert(Widget w, const char *from_type, XrmValuePtr from, const char *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  XtConvert has been replaced by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  XtDirectConvert has been replaced by XtCallConverter.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