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Resource Compiler (rcc)

The rcc tool is used to embed resources into a Qt application during the build process. It works by generating a C++ source file containing data specified in a Qt resource (.qrc) file.


rcc [options] <inputs>

RCC accepts the following command line options:

Option Argument Description
-o file Write output to file rather than to stdout.
-name name Create an external initialization function with name.
-threshold level Specifies a threshold level (as a percentage) to use when deciding whether to compress a file. If the reduction in the file size is greater than the threshold level, it is compressed; otherwise, the uncompressed data is stored instead. The default threshold level is 70%, meaning that compressed files which are 30% or less of their original size are stored as compressed data.
-compress level Compress input files to the given compression level, which is an integer in the range 1 to 9. Level 1 does the least compression but is fastest. Level 9 does the most compression but is slowest. To turn off compression, use -no-compress. The default value for level is -1, which means use zlib's default compression level.
-root path Prefix the resource access path with path. The default is no prefix.
-no-compress Disable compression.
-binary Output a binary file for use as a dynamic resource.
-version Display version information.
-help Display usage information.
-t, --temp <file> Use temporary <file> for big resources.
--namespace Turn off namespace macros.
--verbose Enable verbose mode.
--list Only list .qrc file entries, do not generate code.
-project Output a resource file containing all files from the current directory.

See also The Qt Resource System for more information about embedding resources in Qt applications.

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