Make a window appear on top of another, block access to other windows until button clicked

问题

Python 2.7, PyQt4.8.5

I want to have a main app window and then a second pop up window to display com port settings. This window should always be on top of the parent window until either the ok or the cancel button is clicked; closing the child window. (sort of like a required answer i.e. cant process until you choose the settings from the child window)

Is there a Python Qt command to do this?

Apologies if this has been asked/answered before, my search returned nothing useful.

回答1:

You want a modal dialog. For example:

dialog = QInputDialog()
dialog.exec_()

You can either implement your own dialog widget (by subclassing QDialog) or use one of the several available.

来源：https://stackoverflow.com/questions/8622090/make-a-window-appear-on-top-of-another-block-access-to-other-windows-until-butt