QCheckBox example?

[ChrisW67]

You already have the code. Connect the signal from whatever widget the user uses to actually attempt to start the program to a slot containing the code from your first post. You do not need to connect the checkbox to anything unless you want the program to launch every time the checkbox is clicked.

// slot
void goForthAndExecute() 
{
  // QProcess commandProcess;
  QStringList args;
 
  if (ui->check2pass->isChecked()){
    args << "-pass"; args << "2";
  }
  commandProcess.start("C:/ffmpeg.exe",args);
}

// slot
void goForthAndExecute() 
{
  // QProcess commandProcess;
  QStringList args;

  if (ui->check2pass->isChecked()){
    args << "-pass"; args << "2";
  }
  commandProcess.start("C:/ffmpeg.exe",args);
}

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[Milardo]

I have QProcess commandProcess; in my header file already. I have something like
[CODE]
void Encode ()
{

QStringList args;

args << "-i";
args << "-ac"; args << ui->comboResolution->currentText();


if (ui->check2pass->isChecked()){

args << "-pass"; args << "2";

}

commandProcess.start("C:/ffmpeg.exe",args);

}
[CODE]

I believe it didn't work though the checkbox args weren't recognized. What do you think I am missing?

[ChrisW67]

What triggers a call to Encode()?

[Milardo]

that would be a pushbutton in the gui, basically i check the box, and i want to when i push the Encode button that checkbox args to be applied.

[ChrisW67]

Have you connected the clicked() signal of the push button to this slot?

[Milardo]

yes i have

[ChrisW67]

Well then, you need to put a breakpoint in the slot and single step through it checking that it follows the path you are expecting and that everything has the values you are expecting.

[Milardo]

yeah i will check it again but everything worked correctly except my "if" statements regarding checkbox

[artoonie]

So if you write

if (ui->check2pass->isChecked()){
    args << "-pass"; args << "2";
  } else {
    qDebug("Failed Event.");
  }

if (ui->check2pass->isChecked()){
    args << "-pass"; args << "2";
  } else {
    qDebug("Failed Event.");
  }

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It will print out Failed Event?

[Milardo]

sorry i can't verify that as i'm on a different computer now but i will try that any other suggestions would be welcome.