Class Hierarchy
This inheritance list is sorted roughly, but not completely, alphabetically:

KCookie | Utility class to access the authentication tokens needed to run a KDE program (X11 and DCOP cookies)
KDEsuClient | A client class to access kdesud, the KDE su daemon
PTY | PTY compatibility routines
PtyProcess | Synchronous communication with tty programs
StubProcess | Chat with kdesu_stub
SshProcess | Executes a remote command, using ssh
SuProcess | Executes a command under elevated privileges, using su

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