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(binutils.info) windres

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 windres
 *******
 
    `windres' may be used to manipulate Windows resources.
 
      _Warning:_ `windres' is not always built as part of the binary
      utilities, since it is only useful for Windows targets.
 
      windres [options] [input-file] [output-file]
 
    `windres' reads resources from an input file and copies them into an
 output file.  Either file may be in one of three formats:
 
 `rc'
      A text format read by the Resource Compiler.
 
 `res'
      A binary format generated by the Resource Compiler.
 
 `coff'
      A COFF object or executable.
 
    The exact description of these different formats is available in
 documentation from Microsoft.
 
    When `windres' converts from the `rc' format to the `res' format, it
 is acting like the Windows Resource Compiler.  When `windres' converts
 from the `res' format to the `coff' format, it is acting like the
 Windows `CVTRES' program.
 
    When `windres' generates an `rc' file, the output is similar but not
 identical to the format expected for the input.  When an input `rc'
 file refers to an external filename, an output `rc' file will instead
 include the file contents.
 
    If the input or output format is not specified, `windres' will guess
 based on the file name, or, for the input file, the file contents.  A
 file with an extension of `.rc' will be treated as an `rc' file, a file
 with an extension of `.res' will be treated as a `res' file, and a file
 with an extension of `.o' or `.exe' will be treated as a `coff' file.
 
    If no output file is specified, `windres' will print the resources
 in `rc' format to standard output.
 
    The normal use is for you to write an `rc' file, use `windres' to
 convert it to a COFF object file, and then link the COFF file into your
 application.  This will make the resources described in the `rc' file
 available to Windows.
 
 `-i FILENAME'
 `--input FILENAME'
      The name of the input file.  If this option is not used, then
      `windres' will use the first non-option argument as the input file
      name.  If there are no non-option arguments, then `windres' will
      read from standard input.  `windres' can not read a COFF file from
      standard input.
 
 `-o FILENAME'
 `--output FILENAME'
      The name of the output file.  If this option is not used, then
      `windres' will use the first non-option argument, after any used
      for the input file name, as the output file name.  If there is no
      non-option argument, then `windres' will write to standard output.
      `windres' can not write a COFF file to standard output.
 
 `-I FORMAT'
 `--input-format FORMAT'
      The input format to read.  FORMAT may be `res', `rc', or `coff'.
      If no input format is specified, `windres' will guess, as
      described above.
 
 `-O FORMAT'
 `--output-format FORMAT'
      The output format to generate.  FORMAT may be `res', `rc', or
      `coff'.  If no output format is specified, `windres' will guess,
      as described above.
 
 `-F TARGET'
 `--target TARGET'
      Specify the BFD format to use for a COFF file as input or output.
      This is a BFD target name; you can use the `--help' option to see
      a list of supported targets.  Normally `windres' will use the
      default format, which is the first one listed by the `--help'
      option.   Target Selection.
 
 `--preprocessor PROGRAM'
      When `windres' reads an `rc' file, it runs it through the C
      preprocessor first.  This option may be used to specify the
      preprocessor to use, including any leading arguments.  The default
      preprocessor argument is `gcc -E -xc-header -DRC_INVOKED'.
 
 `--include-dir DIRECTORY'
      Specify an include directory to use when reading an `rc' file.
      `windres' will pass this to the preprocessor as an `-I' option.
      `windres' will also search this directory when looking for files
      named in the `rc' file.
 
 `-D TARGET'
 `--define SYM[=VAL]'
      Specify a `-D' option to pass to the preprocessor when reading an
      `rc' file.
 
 `-v'
      Enable verbose mode.  This tells you what the preprocessor is if
      you didn't specify one.
 
 `--language VAL'
      Specify the default language to use when reading an `rc' file.
      VAL should be a hexadecimal language code.  The low eight bits are
      the language, and the high eight bits are the sublanguage.
 
 `--use-temp-file'
      Use a temporary file to instead of using popen to read the output
      of the preprocessor. Use this option if the popen implementation
      is buggy on the host (eg., certain non-English language versions
      of Windows 95 and Windows 98 are known to have buggy popen where
      the output will instead go the console).
 
 `--no-use-temp-file'
      Use popen, not a temporary file, to read the output of the
      preprocessor.  This is the default behaviour.
 
 `--help'
      Prints a usage summary.
 
 `--version'
      Prints the version number for `windres'.
 
 `--yydebug'
      If `windres' is compiled with `YYDEBUG' defined as `1', this will
      turn on parser debugging.
 
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