qt process error Abercrombie North Dakota

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qt process error Abercrombie, North Dakota

The file will be appended to if mode is Append, otherwise, it will be truncated. Running a Process To start a process, pass the name and command line arguments of the program you want to run as arguments to start(). comment:2 Changed 2 years ago by djowel I don't use QT. This is the default channel mode of QProcess.

more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation If no process is currently running, 0 is returned. 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. Starts the program set by setProgram() with arguments set by setArguments().

Please try the request again. If the process cannot be started, -2 is returned. QProcess::Starting1The process is starting, but the program has not yet been invoked. In such cases this function must be used to set a string which is appended to the string composed from the usual argument list, with a delimiting space.

void QProcess::setProgram(const QString & program) Set the program to use when starting the process. See also state(). [signal] void QProcess::errorOccurred(QProcess::ProcessError error) This signal is emitted when an error occurs with the process. Note that this function will not return until the process is terminated. See also setStandardOutputFile(), setStandardErrorFile(), and setStandardOutputProcess().

ConstantValueDescription QProcess::StandardOutput0The standard output (stdout) of the running process. The returned file path uses native directory separators. For example: QProcess process; process.start("dir \"Epic 12\"\"\" Singles\""); After the command string has been split and unquoted, this function behaves like the overload which takes the arguments as a string list. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

end of functionA() 5. Arguments containing spaces must be quoted to be correctly supplied to the new process. These channels represent two separate streams of data. as when I attempt to close the app, (step 7 in the flow), the app crashes, and I thought that the spawned QProcess is not properly released.

void QProcess::setStandardOutputFile(const QString & fileName, OpenMode mode = Truncate) Redirects the process' standard output to the file fileName. Member Function Documentation QProcess::QProcess(QObject * parent = 0) Constructs a QProcess object with the given parent. [virtual] QProcess::~QProcess() Destructs the QProcess object, i.e., killing the process. Your cache administrator is webmaster. This function was introduced in Qt 5.1.

Pass one of these values to setProcessChannelMode() to set the current read channel mode. 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. If msecs is -1, this function will not time out. The positioning and the screen Z-order of windows belonging to GUI applications started with QProcess are controlled by the underlying windowing system.

Your cache administrator is webmaster. QString QProcess::program() const Returns the program the process was last started with. The standard output and standard error data of the running process are interleaved. 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).

The system returned: (113) No route to host The remote host or network may be down. enum QProcess::InputChannelMode This enum describes the process input channel modes of QProcess. After the command string has been split and unquoted, this function behaves like the overload which takes the arguments as a string list. The state of QProcess is unchanged, and you can try calling waitFor...() again.

Pass one of these values to setProcessChannelMode() to set the current read channel mode. This method is an alias for start(), and exists only to fully implement the interface defined by QIODevice. See also processChannelMode(), ProcessChannelMode, and setReadChannel(). src/app/CMakeFiles/dahmi_automoc.dir/build.make:49: recipe for target 'src/app/CMakeFiles/dahmi_automoc' failed make[2]: * [src/app/CMakeFiles/dahmi_automoc] Error 1 CMakeFiles/Makefile2:367: recipe for target 'src/app/CMakeFiles/dahmi_automoc.dir/all' failed make[1]: * [src/app/CMakeFiles/dahmi_automoc.dir/all] Error 2 make[1]: * Waiting for unfinished jobs.... /usr/include/boost/fusion/container/vector/vector.hpp:25: Error: '#'

Note: For new code, it is recommended to use QProcessEnvironment::systemEnvironment()This function was introduced in Qt 4.1. When the redirection is in place, the standard output read channel is closed: reading from it using read() will always fail, as will readAllStandardOutput(). ConstantValueDescription QProcess::NotRunning0The process is not running. You also have the option of forwarding the output of the running process to the calling, main process, by passing ForwardedChannels as the argument.

Certain processes need special environment settings in order to operate.