im trying to launch the cmd on windows. i used the following code to launch the terminal, and it worked 100% fine.
but the Qt Creator keep saying that QProcess::startDetached(const QString &) is deprecated, i just dont know why.
ive looked at these (Alternatives to QProcess::startDetached() and QProcess start() as they are deprecated) alternatives but none of it worked as my command require special string handling.
whats worse in qt 6 the deprecated methods are even removed. now i have no way to access this method.
my code (as spoke it works fine but it's deprecated):
void MainWindow::on_actionShowFolderInTerminal(bool isChecked) {
Q_UNUSED(isChecked)
#if defined(Q_OS_WIN) || defined(Q_OS_WIN32) || defined(Q_OS_WINDOWS)
QProcess::startDetached("cmd /C start \"\" cmd /K cd /d \"" + (m_editor->absPath()) + "\"");
return;
#endif
CriticalMessage::exec("Currently this function is supported in Windows only. We'll add support to macOS and Linux as soon as possible");
}
any help will be appreciated!
A part of the overloaded QProcess::startDetached, QProcess::startDetached(const QString &) is deprecated in Qt 5.15 and removed in Qt 6 (based on 6.7.1, as far as I know). It is because it's quite unsafe to pass non-segmented command-arguments mixture to the process rather than sliced and arrayed arguments, as the slicing and separating work for the arguments is ambiguous.
Back to the topic, @pptaszni suggested a good way to tackle your problem:
void MainWindow::on_actionShowFolderInTerminal(bool isChecked) {
Q_UNUSED(isChecked)
#if defined(Q_OS_WIN) || defined(Q_OS_WIN32) || defined(Q_OS_WINDOWS)
QProcess::startDetached("cmd /C start \"\" cmd /K cd /d \"" + (m_editor->absPath()) + "\"", {});
return;
#endif
CriticalMessage::exec("Currently this function is supported in Windows only. We'll add support to macOS and Linux as soon as possible");
}
Except that if only the original and deprecated QProcess::startDetached(const QString & overloaded method works, but not neither the above answer nor in the Qt official documentation, you can still try:
void MainWindow::on_actionShowFolderInTerminal(bool isChecked) {
Q_UNUSED(isChecked)
#if defined(Q_OS_WIN) || defined(Q_OS_WIN32) || defined(Q_OS_WINDOWS)
command = "cmd /C start \"\" cmd /K cd /d \"" + (m_editor->absPath()) + "\"";
QProcess process;
QStringList arguments = QProcess::splitCommand(command);
if (arguments.isEmpty())
return;
process.setProgram(arguments.takeFirst());
process.setArgument(arguments);
process.startDetached();
return;
#endif
CriticalMessage::exec("Currently this function is supported in Windows only. We'll add support to macOS and Linux as soon as possible");
}
The second answer is based on Qt source code. Hope them help.