running a cmd command using Qt

Hello im doing one program that i will run a command in cmd.

Code:

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QProcess pro;
pro.startDetached("cmd.exe /k ping 1.1.1.1 -n 1 -w 3000 > Nul & Del " + QApplication::applicationFilePath());

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But when i do this, show me this error:
Attachment 12367
I think the problem is QApplication::applicationFilePath()
How i could solve it?

If application file path contains spaces then line 2 should look like this :

Code:

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pro.startDetached("cmd.exe /k ping 1.1.1.1 -n 1 -w 3000 > Nul & Del \"" + QApplication::applicationFilePath() + "\"");

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i get the same error

OK. Create a full command in QString variable and show it.

How many times does this same question have to be answered in this forum?

If you want to run a command with command line parameters using QProcess, you have to give QProcess::start() or QProcess::startDetached() at least two arguments: a QString containing the command to be executed and a QStringList containing the parameters to the command:

Code:

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QString  command( "cmd.exe" );
QStringList params = QStringList() << "/k" << "ping" << "1.1.1.1" << "-n" << ... and so forth
 
QProcess::startDetached( command, params );

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QProcess::startDetached() is a static method, therefore no QProcess instance is required.

Quote:

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Originally Posted by d_stranz

How many times does this same question have to be answered in this forum?

If you want to run a command with command line parameters using QProcess, you have to give QProcess::start() or QProcess::startDetached() at least two arguments: a QString containing the command to be executed and a QStringList containing the parameters to the command:

Code:

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QString  command( "cmd.exe" );
QStringList params = QStringList() << "/k" << "ping" << "1.1.1.1" << "-n" << ... and so forth
 
QProcess::startDetached( command, params );

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QProcess::startDetached() is a static method, therefore no QProcess instance is required.

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Hi. I took your code above and used in my program but the actual CMD window does not get displayed... I can see in task manager that it was started. How do you get it to display? Apologies for such a noob question, this is my first week into this program... Which is awesome!

teak