Cursor not changing

[bpetty]

I have a class that inherits from QMainWindow called CMainForm.

I have a menu action that triggers a method called menuPackageLogs().

At the begining of the method I set the cursor to Qt::WaitCursor, and at the end I set it back to Qt::ArrowCursor. In between I call a routine that blocks for a while. The problem is that my cursor never changes. It is always an arrow, never an hour glass.

I must be missing something fundemental here.
Here is an example of the method that gets called:

void CMainForm::menuPackageLogs()
{
    // Change cursor to wait cursor
    setCursor(QCursor(Qt::WaitCursor));
 
    bool bRet = UpgradeUtils::PackageLogs();
 
    // Change cursor back to standard arrow
    setCursor(QCursor(Qt::ArrowCursor));
 
    if (bRet == true)
    {
        QMessageBox::warning(this, tr("Package Logs"),
                            "Upgrade log files successfully packaged.");
    }
    else
    {
        QMessageBox::warning(this, tr("Package Logs"),
                            "Could not package Upgrade log files.");
    }
}

void CMainForm::menuPackageLogs()
{
    // Change cursor to wait cursor
    setCursor(QCursor(Qt::WaitCursor));

    bool bRet = UpgradeUtils::PackageLogs();

    // Change cursor back to standard arrow
    setCursor(QCursor(Qt::ArrowCursor));

    if (bRet == true)
    {
        QMessageBox::warning(this, tr("Package Logs"),
                            "Upgrade log files successfully packaged.");
    }
    else
    {
        QMessageBox::warning(this, tr("Package Logs"),
                            "Could not package Upgrade log files.");
    }
}

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If anyone has any ideas, I am all ears. Thanks.

[marcel]

Are you sure this function is executed?
If it is, then maybe the PackageLogs exits very fast so you don't have time to see the difference.

Try adding QThread::msleep(5000); before or after the function call.See if you notice any difference.

Regards

[bpetty]

I did a sleep() for 15 seconds... with no luck. My application just hangs till it is done sleeping. The cursor never changes.

[marcel]

Yes, use QApplication::setOverrideCursor to set the busy cursor and QApplication::resoreOverrideCursor to restore the arrow cursor.

Both these functions are static.

Regards

[Gopala Krishna]

If anyone has any ideas, I am all ears. Thanks.

Just a lame idea which might work. Add this before calling bool bRet = UpgradeUtils::PackageLogs();

qApp->processEvents()

qApp->processEvents()

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