windres - manipulate Windows resources.
windres [options] [input-file] [output-file]
windres reads resources from an input file and copies them into an out-
put file. Either file may be in one of three formats:
A text format read by the Resource Compiler.
A binary format generated by the Resource Compiler.
A COFF object or executable.
The exact description of these different formats is available in docu-
mentation 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
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 appli-
cation. This will make the resources described in the "rc" file avail-
able to Windows.
The name of the input file. If this option is not used, then win-
dres 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
The input format to read. format may be res, rc, or coff. If no
input format is specified, windres will guess, as described above.
The output format to generate. format may be res, rc, or coff. If
no output format is specified, windres will guess, as described
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.
When windres reads an "rc" file, it runs it through the C prepro-
cessor 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".
Specify an include directory to use when reading an "rc" file.
windres will pass this to the preprocessor as an -I option. win-
dres will also search this directory when looking for files named
in the "rc" file. If the argument passed to this command matches
any of the supported formats (as descrived in the -J option), it
will issue a deprecation warning, and behave just like the -J
option. New programs should not use this behaviour. If a direc-
tory happens to match a format, simple prefix it with ./ to disable
the backward compatibility.
Specify a -D option to pass to the preprocessor when reading an
Specify a -U option to pass to the preprocessor when reading an
-r Ignored for compatibility with rc.
-v Enable verbose mode. This tells you what the preprocessor is if
you didn't specify one.
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 popen, not a temporary file, to read the output of the prepro-
cessor. This is the default behaviour.
Prints a usage summary.
Prints the version number for windres.
If windres is compiled with "YYDEBUG" defined as 1, this will turn
on parser debugging.
the Info entries for binutils.
Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
2003 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of the license is included in the section entitled ``GNU
Free Documentation License''.
binutils-030512 2003-05-12 WINDRES(1)