[Qt-interest] Can't i use progressBar->hide() and progressBar->show() in same block of code ?

[Usman Ajmal]

Hi again...

Whenever i use progressBar->hide() and progressBar->show() is same block of
code, the hide() seems to have overide the show() function and therefore i
don't see any progress bar busy indicator.

What i am doing is that i first show the busy indicator then i perform my
operation which takes about 2-3 minutes. After the operation completes i
wanted to hide the bar.

But i not getting the required functionality. Is it because qmake is a
compiler, not an interpretor so it sees the progressBar->hile() only that
comes at the end of code.

Following is the code:

    progressBar->show();
    QObject *parent;
    QString program = "dd if=/dev/mem of= of=/home/dump.dt"

    QProcess *myProcess= new QProcess(parent);
    myProcess->start(program);

    while (myProcess->waitForFinished()) {

     }
    progressBar->hide();
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