Virtualbox Cannot register the hardisk

Virtualbox Cannot register the hard disk I get this error when try to clonning hard disk Virtualbox. I use copy-paste method in vdi Virtualbox disk image. I try to running this clonning hard disk Virtualbox and get this Virtualbox Cannot register the hard disk error message. This is a window error message from Virtualbox :

Qt Remove Directory

Qt Remove Directory Qt have rich QDir class provides access to directory structures and their contents. QDir have function QDir::rmdir to remove directory. The directory must be empty for rmdir() to succeed. This Qt Remove Directory function Returns true if successful,  otherwise returns false. The problem is how Qt Remove Directory if that directory not

Qt List File And Directory

Qt List File And Directory In this tutorial, I will create a tutorial how Qt List File And Directory at a location. From this method, we can know list all files and directory, only directory or only files at location we defined.  In this Qt List File And Directory tutorial, I create a simple form