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

Difficult to do reliably on windows (some odd things such as a file named "com" still being invalid) and do you want to handle unicode, or subst tricks to allow a >260 char filename.

There is already a good answer here How do I check if a given string is a legal / valid file name under Windows?