bool QProcess::waitForFinished ( int msecs = 30000 )
Blocks until the process has finished and the finished() signal has been emitted, or until msecs milliseconds have passed.
Returns true if the process finished; otherwise returns false (if the operation timed out, if an error occurred, or if this QProcess is already finished).
This function can operate without an event loop. It is useful when writing non-GUI applications and when performing I/O operations in a non-GUI thread.
Warning: Calling this function from the main (GUI) thread might cause your user interface to freeze.
If msecs is -1, this function will not time out.
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