QDockWidget provides the concept of dock widgets, also know as tool palettes or utility windows. Dock windows are secondary windows placed in the dock widget area around the central widget in a QMainWindow(original window). Dock windows can be moved inside their current area, moved into new areas and floated (e.g., undocked) by the end-user. The QDockWidget API allows the programmer to restrict the dock widgets ability to move, float and close, as well as the areas in which they can be placed.
Below is how the dock widget looks like
When we open this widget it looks like this
We will create a dock widget and add push button to it and when push button will get pressed a message will get printed on the label
Below is the implemnetation
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