Code to launching a program
I want to know how to make a pushbutton that when clicked will open a program or file(such as a text file or internet explorer). I do not need to read or write to it, just launch/open it.
Ok...First you need to create a SLOT and connect to QPushButton, this SLOT is called when a SIGNAL clicked() is emitted by QPushButton. A tip, "SIGNAL/SLOT":http://qt-project.org/doc/qt-5/signalsandslots.html is key of Qt, I suggest you read more about this.
And to open a file or program you can use "QProcess":http://qt-project.org/doc/qt-5/QProcess.html.
In practice it would be something like this:
QPushButton *button = new QPushButton("Button", this);
connect(button, SIGNAL(clicked()), this, SLOT(openProgramFile()))
So you create a SLOT....
Add this in your Header file (.h):
Add this in your Source file (.cpp):
QString programPath = "/path/to/program"; QStringList arguments; arguments << "argument1" << "argument2"; QProcess *myProcess = new QProcess(this); myProcess->start(programPath, arguments);
Place a QPushButton, use QObject::connect() to connect it to a method of your choosing, inside that method use QProcess to launch a different program. Quite easily done, actually!
EDIT: I didn't notice that somebody else already wrote a much more detailed reply, hadn't refreshed the page after a little bit of waiting.
Thanks for the help!
I also have tried the system(" file directory "); and that works to.
I would like to have the program be hidden and close after certain time. QProsses be able to do this to?
QProcess will help you to kill/terminate created process. You will not be able to hide it through QProcess