How to open console window via QProcess?

[Kien Bui]

I init a QProcess to open a console window, but no window is show.

QProcess *process = new QProcess();
process->start("adb devices");

[SGaist]

Hi and welcome to devnet,

There's no reason for any console window to be shown when executing such a command.

If you want to parse the output of your process then you can read what was sent to stdout once your command has finished.

[Kien Bui]

To work with Android device, I need open a console window. I want to open a console window to continue text command
Eg: "adb -s device shell" to open shell access android device

[Kien Bui]

I found a keyword: "CREATE_NEW_CONSOLE" but I don't know to use it

[mrjj]

Hi,
What you want is called a interactive shell/prompt
This is sample for Windows

QDetachableProcess process;
    QString program = "cmd.exe";
    QStringList arguments = QStringList() << "/K" << "C:\\Program Files\\Inkscape\\python.exe";
    process.setCreateProcessArgumentsModifier(
                [](QProcess::CreateProcessArguments *args) {
        args->flags |= CREATE_NEW_CONSOLE;
        args->startupInfo->dwFlags &=~ STARTF_USESTDHANDLES;
    });
    process.start(program, arguments);
    process.detach();
    }

starts python and let u type commands in it.

[JonB]

@mrjj
Yes, but the OP wants it for Android! :)

[mrjj]

@JonB
Oh, thx. i missed that little word.
No idea how to get interactive shell on phone.
if even allowed.

[mnbv]

Wanted to do something similar and found this while checking if QProcess could handle it conveniently (it can't, as seen above).

Just use std::system. Doing it with QProcess just makes extra work. E.g. for the OP:

#include <cstdlib>

std::system("adb -s device shell");

If you want to just open a command shell, the command depends on the platform but it'd be something like:

std::system("cmd"); // windows
std::system("/bin/bash"); // linux, maybe osx? 
// etc...

For that Python example above:

std::system("\"C:\\Program Files\\Inkscape\\python.exe\"");

// or if necessary:
std::system("cmd /K \"C:\\Program Files\\Inkscape\\python.exe\"");

// or if python is in the path, just:
std::system("python");

PS This whole thread is a bit silly. The OP didn't want to open a shell on a phone, and there's definitely good reasons to start adb in a console window (it's a console-based interactive shell for debugging an attached Android device). The OP wanted to start it in a console window so they could continue to use it in said console window after starting it.