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How to open dialog box on top of the application if two screen are connected?

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qdialogsplashscreensplash
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  • Y Offline
    Y Offline
    Yash001
    replied to SGaist on last edited by
    #12

    @SGaist by using setParent and set WindowFlag property. i am able to open dialog on top of the Application.

    dialog->setWindowFlags(Qt::SplashScreen);
    dialog->setParent(m_mainWindow);

    Thank you Sir for your help.

    1 Reply Last reply
    0
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    wrote on last edited by
    #13

    Ok should be the same as, or else im very wondering

    void MainWindowUI::ShowDataRecoveryInformDialog() {
    QDialog dialog = new QDialog( m_mainWindow);
    dialog->setWindowFlags(Qt::SplashScreen);
    auto dialogLay = new QVBoxLayout(dialog);
    dialogLay->addWidget(PBT("button 1"));
    dialogLay->addWidget(PBT("button 2"));
    dialog->exec();
    }
    
    Y 1 Reply Last reply
    0
  • Y Offline
    Y Offline
    Yash001
    replied to mrjj on last edited by
    #14

    @mrjj

    I don't know. what is different but now it is work. i did not make any change except setting the property

    before:
    QDialog *dialog = new QDialog(parent, Qt::SplashScreen);

    now :

    QDialog* dialog = new QDialog();
    dialog->setWindowFlags(Qt::SplashScreen);
    dialog->setParent(m_mainWindow);

    mrjjM 1 Reply Last reply
    0
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #15

    @Yash001
    ok, im not sure either. seems the same :)

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  • Y Offline
    Y Offline
    Yash001
    wrote on last edited by
    #16

    I found the different.

    it is work fine.

    dialog->setWindowFlags(Qt::SplashScreen);
    dialog->setParent(m_mainWindow);

    it is not work.

    dialog->setParent(m_mainWindow);
    dialog->setWindowFlags(Qt::SplashScreen);

    mrjjM 1 Reply Last reply
    1
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #17

    @Yash001
    Ok so Qt::SplashScreen does something with parent.

    Y 1 Reply Last reply
    0
  • Y Offline
    Y Offline
    Yash001
    replied to mrjj on last edited by
    #18

    @mrjj May be. It is qt default function.

    mrjjM 1 Reply Last reply
    0
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #19

    @Yash001
    yeah its a windows flag.

    Y 1 Reply Last reply
    0
  • Y Offline
    Y Offline
    Yash001
    replied to mrjj on last edited by
    #20

    @mrjj

    dialog->setWindowFlags(Qt::SplashScreen);
    dialog->setParent(m_mainWindow);
    In this case I got dialog box on top of the screen but it is make another issue

    dialog->exec(); is not work as per expectation. without responding the to Dialog user access the other page also.

    In other word, user can access both screen Main application as well as Dialog box. how to block access on other widget until get response from the user in dialog box?

    mrjjM 1 Reply Last reply
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  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #21

    Hi
    Im not 100% sure Qt::SplashScreen is compatiple with Qt::Dialog flag

    Qt::SplashScreen 0x0000000e | Window Indicates that the window is a splash screen. This is the default type for QSplashScreen.

    Normally used with QSplashScreen widget.

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  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    wrote on last edited by
    #22

    maybe try with
    dialog->setWindowFlags(Qt::Dialog | Qt::SplashScreen);

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  • Y Offline
    Y Offline
    Yash001
    wrote on last edited by
    #23

    @mrjj it is create previous issue.

    mrjjM JonBJ 2 Replies Last reply
    0
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #24

    @Yash001
    but why you need Qt::SplashScreen ?
    and modal dialog ?
    cant you just use the dialog ?

    1 Reply Last reply
    1
  • JonBJ Offline
    JonBJ Offline
    JonB
    replied to Yash001 on last edited by
    #25

    @Yash001
    Similarly to @mrjj , have you considered using QSplashScreen (http://doc.qt.io/qt-5/qsplashscreen.html), maybe it doesn't have these problems?

    1 Reply Last reply
    1
  • Y Offline
    Y Offline
    Yash001
    wrote on last edited by
    #26

    I am using Qt::SplashScreen because of I wanted show dialog on the top of all screen. This dialog is show whenever specific signal is generated from Hardware Connection. if hardware is connected with PC before opening our Software then dialog will open after Software Open. and control need to transfer on dialog box. (at this time user should not access any other page).

    I have not idea what is model Dialog.

    mrjjM 1 Reply Last reply
    0
  • mrjjM Offline
    mrjjM Offline
    mrjj Lifetime Qt Champion
    replied to Yash001 on last edited by
    #27

    @Yash001
    Modal dialog means user cannot click on mainwindow behind dialog.
    Sometimes also called blocking.
    comes when using exec() versus show().

    Y 1 Reply Last reply
    1
  • Y Offline
    Y Offline
    Yash001
    replied to mrjj on last edited by
    #28

    @mrjj understood. thank you.

    1 Reply Last reply
    0

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