qt3to4 - The Qt 3 to 4 Porting Tool

Advanced Usage

When porting, qt3to4 parses the source files and ports the contents according to the C++ language rules. This C++ parsing step can be disabled with the -disableCppParsing option.

If C++ parsing is enabled, qt3to4 must be able to locate the headers included from the source files. Necessary headers include the public Qt headers and any headers that declares names that may conflict with names in the public Qt headers. The standard C++ headers and system headers are usually not needed.

You can tell qt3to4 where to look for headers by using the -I command-line option. Qt 3.3 header information is built in, so it is normaly not necessary to specify the location of the Qt headers. If you are porting from a different version of Qt 3, you may want to disable the built-in headers with -disableBuiltInQt3Headers, and then add the path to the actual headers with the -I option.

When porting a project, qt3to4 will read the INCLUDEPATH and DEPENDPATH variables from the .pro file and add the paths specified here to the list of include search directories.

To see which headers that are not found, use the -missingFileWarnings option.

 using namespace Qt;