How to open a new window from a pushbutton in qt

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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have files main. I have a push button on this original main window. What I want is when I click on the button, it should take me to a new main window and delete the original main window. Also I want to follow good programming practices. So I am wondering that should new source and header files like SecondWindow. The answer given by Kuba Ober works.

However, you can have only 2 main windows at all times no matter how many times you press the button. It seems to crash the program after the second time you run it. I believe my solution would be better since you can open as many main windows. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Qt: How to open a new main window on push button click and delete original main window?

Ask Question. Asked 5 years, 7 months ago. Active 2 years, 3 months ago. Viewed 3k times. Bowdzone 3, 11 11 gold badges 33 33 silver badges 45 45 bronze badges. Active Oldest Votes. You need to: Instantiate the new window and show it. Delete the current window once the control returns to the event loop. Reinstate Monica Reinstate Monica Aryanam Aryanam 1.

how to open a new window from a pushbutton in qt

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QT C++ GUI Tutorial 5- How to open a new window from a pushbutton in Qt

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The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have files main. I have a push button on this original main window. What I want is when I click on the button, it should take me to a new main window and delete the original main window. Also I want to follow good programming practices. So I am wondering that should new source and header files like SecondWindow.

The answer given by Kuba Ober works. However, you can have only 2 main windows at all times no matter how many times you press the button. It seems to crash the program after the second time you run it. I believe my solution would be better since you can open as many main windows. Learn more.

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Qt: How to open a new main window on push button click and delete original main window? Ask Question. Asked 5 years, 7 months ago. Active 2 years, 3 months ago. Viewed 3k times. Bowdzone 3, 11 11 gold badges 33 33 silver badges 45 45 bronze badges. Active Oldest Votes. You need to: Instantiate the new window and show it. Delete the current window once the control returns to the event loop.

Reinstate Monica Reinstate Monica Aryanam Aryanam 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

how to open a new window from a pushbutton in qt

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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm new to qt programming so please don't mind if you find it a noob question. I've added a button to my main window but when I run the code the button is not displayed. Here's my code:. Add a widget and add the button to that widget and set the widget for centralWidget :. Learn more. How to add buttons to a main window in Qt?

Ask Question. Asked 6 years, 8 months ago. Active 5 years, 7 months ago. Viewed 34k times. Here's my code: mainwindow. Learner Learner 2 2 gold badges 7 7 silver badges 18 18 bronze badges. For the beggining it is better from my point of view to create application with QWidget as base class.

QMainWindow provide a lot of extra functionality and you may learn it only when you will have some experience it Qt. Active Oldest Votes.

In main window you should use central widget. Collin Price 4, 2 2 gold badges 30 30 silver badges 34 34 bronze badges. What if I want to add more buttons? Should I use the same widget or create a new widget for each buttons?

Qt Tutorials For Beginners 9 - How to Show Another Window From MainWindow in QT

You just have one central widget! You should use Layouts. I'll update my answer very soon. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Socializing with co-workers while social distancing. Podcast Programming tutorials can be a real drag. Featured on Meta.

Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Dark Mode Beta - help us root out low-contrast and un-converted bits. Technical site integration observational experiment live on Stack Overflow.Qt Designer can be used to create user interfaces for different purposes, and it provides different kinds of form templates for each user interface.

The main window template is used to create application windows with menu bars, toolbars, and dock widgets. Create a new main window by opening the File menu and selecting the New Form Then, select the Main Window template.

This template provides a main application window containing a menu bar and a toolbar by default -- these can be removed if they are not required. If you remove the menu bar, a new one can be created by selecting the Create Menu Bar option from the context menu, obtained by right-clicking within the main window form. Menus are added to the menu bar by modifying the Type Here placeholders.

One of these is always present for editing purposes, and will not be displayed in the preview or in the finished window. Once created, the properties of a menu can be accessed using the Property Editorand each menu can be accessed for this purpose via the The Object Inspector. Double-click the placeholder item to begin editing. The menu text, displayed using a line edit, can be modified. Insert the required text for the new menu. Press Return or Enter to accept the new text, or press Escape to reject it.

You can undo the editing operation later if required. Menus can also be rearranged in the menu bar simply by dragging and dropping them in the preferred location. A vertical red line indicates the position where the menu will be inserted. Menus can contain any number of entries and separators, and can be nested to the required depth.

Adding new entries to menus can be achieved by navigating the menu structure in the usual way. Double-click the Type Here placeholder to begin editing, or double-click Add Separator to insert a new separator line after the last entry in the menu. The action created for this menu entry will be accessible via the Action Editorand any associated keyboard shortcut can be set there.

Just like with menus, entries can be moved around simply by dragging and dropping them in the preferred location. When an entry is dragged over a closed menu, the menu will open to allow it to be inserted there. Since menu entries are based on actions, they can also be dropped onto toolbars, where they will be displayed as toolbar buttons. Toolbars are added to a main window in a similar way to the menu bar: Select the Add Tool Bar option from the form's context menu.

Alternatively, if there is an existing toolbar in the main window, you can click the arrow on its right end to create a new toolbar. Toolbar buttons are created as actions in the Action Editor and dragged onto the toolbar. Since actions can be represented by menu entries and toolbar buttons, they can be moved between menus and toolbars. To share an action between a menu and a toolbar, drag its icon from the action editor to the toolbar rather than from the menu where its entry is located.

See Adding an Action for more information about this process. With the menu bar and the toolbars in place, it's time to populate them with actions.

New actions for both menus and toolbars are created in the action editor window, simplifying the creation and management of actions.Using QPushButton developers can create and handle buttons. This class is easy to use and customize so it is among the most useful classes in Qt. In general the button displays text but an icon can also be displayed. The text of QPushButton can be set upon creation or using setText.

To get the current text of the button use text. The icon of QPushButton can also be set upon creation. After creation the icon can be changed using setIcon To get the current icon of the button use icon. To set the position and the size of the button use setGeometry. If you want just to modify the size of the button use resize.

QPushButton emits signals if an event occurs. To handle the button connect its appropriate signal to a slot:. The following simple code snippet shows how to create and use QPushButton. It has been tested on Qt Symbian Simulator. An instance of QPushButton is created. Signal released is connected to slot handleButton which changes the text and the size of the button.

The above steps are for linux but can easily be followed on other systems by replacing make with the correct make call for the system. Jump to: navigationsearch. Categories : HowTo Snippets Tutorial. Navigation menu Personal tools Sign in. Namespaces Page Discussion. Views Read View source View history. Navigation Main page Recent changes Random page Help.

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I'm making a plugin which has two windows. What I want to know is how to refer pushButton in one window to method which opens new window. Is there anything else I should take into consideration? EDIT: I tried to do it like dmh said, but something is still wrong.

Here is my code I what had I changed:. Of course you can do it on a different way. And remember about passing objects like parent it is your main dialog window and iface if you want to use them with this new window.

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I was thinking about difficoult soulution and I just overwrote it all. It was so simple. I must just import dialog for second window, add a method to open new dialog and add a line in init to react when button pushed.

Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. When buton clicked, open new window - pyqgis Ask Question. Asked 3 years, 9 months ago. Active 1 year, 11 months ago.

Viewed 26k times. Maybe someone have a code with similar button-window connection? After setupUI you can access any designer object by doing self. Tom W. Tom 1 1 gold badge 8 8 silver badges 16 16 bronze badges.

Active Oldest Votes. You can create a new dialog as a class, even in your main. This function creates a new dialog and display it. I have changed my code but something is still wrog.

how to open a new window from a pushbutton in qt

Here is an error which appears when clicking a button: super SymbolizacjaConfig, self. Tom Jul 13 '16 at Sign up or log in Sign up using Google. Sign up using Facebook.Over 90 percent of questions asked here gets answered.

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Thread: How would I open a new window from a button in the dialog using Qt Creator? Thread Tools Show Printable Version. How would I open a new window from a button in the dialog using Qt Creator? I'm new to qt programming. I have one dialog designed in Qt5. QString connection. To copy to clipboard, switch view to plain text mode. Qt Code: Switch view. QDialog parent. QString username,password. QSqlQuery query. Re: How would I open a new window from a button in the dialog using Qt Creator?

You usually don't need to set the modality of a dialog. Similar Threads when i click a button in the menubar i want to open a new window? By arninio in forum Newbie.

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