XtConvert(3Xt)              X Version 11(Release 3)              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 XtConvert function looks up the type converter registered to convert
      from_type to to_type, computes any additional arguments needed, and then
      calls XtDirectConvert.

      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.



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XtConvert(3Xt)              X Version 11(Release 3)              XtConvert(3Xt)


SEE ALSO
      XtAppAddConverter(3Xt), XtStringConversionWarning(3Xt)
      X Toolkit Intrinsics - C Language Interface
      Xlib - C Language X Interface


















































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