set a QDialog's initial location

[tfort]

Hi,
I created a help dialog as a non-modal QDialog that comes up when a button is pressed from our main application. We want it to display just to the right of the application's dialog. However whenever I run it it comes up at the top of the monitor just to the right of center (the application is in the center of the monitor both horizontally and vertically). I have been trying several ways of using "move" but I haven't got it to work. I would appreciate help in the proper way to place it to the right of it's parent. Thanks

in the helpDialog.h:

class HelpDialog :public QDialog {
(removed the rest)
}

class HelpDialog :public QDialog {
(removed the rest)
}

To copy to clipboard, switch view to plain text mode 

in helpDialog.cpp

HelpDialog::HelpDialog(QWidget *const theParent)
   : QDialog(theParent),
   ui(new Ui::HelpDialog)
   {
      ui->setupUi(this);
 
      // display the dialog on the right of the current screen.
      if (nullptr != MyParent)
      {
         move( MyParent->parentWidget()->window()->rect().topRight() );  //NOTE: one of various values we've tried here
         setWindowFlags(Qt::Window); //ensure the minimize button on the QDialog
      }
   }

HelpDialog::HelpDialog(QWidget *const theParent)
   : QDialog(theParent),
   ui(new Ui::HelpDialog)
   {
      ui->setupUi(this);

      // display the dialog on the right of the current screen.
      if (nullptr != MyParent)
      {
         move( MyParent->parentWidget()->window()->rect().topRight() );  //NOTE: one of various values we've tried here
         setWindowFlags(Qt::Window); //ensure the minimize button on the QDialog
      }
   }

To copy to clipboard, switch view to plain text mode 

in code for main application window to bring this up:
in class init() function

myHelp = new HelpDialog(this);
   //lamba to handle pressing of help button
   const auto ToggleHelp = [this]()
   {
      const QString HelpText = tr("Some help text goes here"); 
 
      if (isVisible())
      {
         myHelpDialog->setMessage(HelpText);
         myHelpDialog->show(); //use show for nonmodal dialogs
      }
   };
   ( void )connect(footerWidget, &FooterWidget::helpButtonClicked, ToggleHelp);
   myHelpDialog->hide();

myHelp = new HelpDialog(this);
   //lamba to handle pressing of help button
   const auto ToggleHelp = [this]()
   {
      const QString HelpText = tr("Some help text goes here"); 

      if (isVisible())
      {
         myHelpDialog->setMessage(HelpText);
         myHelpDialog->show(); //use show for nonmodal dialogs
      }
   };
   ( void )connect(footerWidget, &FooterWidget::helpButtonClicked, ToggleHelp);
   myHelpDialog->hide();

To copy to clipboard, switch view to plain text mode