Check whether a string is a valid filename with Qt

Question

Is there a way with Qt 4.6 to check if a given QString is a valid filename (or directory name) on the current operating system ? I want to check for th

Answer 1

see example (from Digia Qt Creator sources) in: https://qt.gitorious.org/qt-creator/qt-creator/source/4df7656394bc63088f67a0bae8733f400671d1b6:src/libs/utils/filenamevalidatinglineedit.cpp