PyQt-如何检查QDialog是否可见? [英] PyQt - How to check is QDialog is visible?

问题描述

我有问题.我有以下代码:

I have a problem. I have this code:

balls = [Ball() for i in range(1, 10)]

因此，当我说Ball()时，它将在QDialog上绘制一个球.然后，完成此操作后，我将无限循环地围绕QDialog移动这些球.我想说的是而QDialog.isVisible()移动它们.

So, when I say Ball() this will draw a ball on QDialog. And then when this is done, I am moving the balls around QDialog in an infinite loop. I want to say something like while QDialog.isVisible() move them around.

我没有任何父对话框或窗体，也没有任何子对话框或窗体.一切都与此QDialog有关.我知道对QDialog进行操作很愚蠢，但是除QDialog之外，我不允许使用其他任何内容.

I don't have any parent dialog or form or any child dialog or form. It's all just about this QDialog. I know that it's stupid to do with QDialog, but I am not allowed to use anything else than just QDialog.

推荐答案

您可以从QWidget使用isVisible，因为QDialog基本上继承了QWidget.因此，您应该能够检查可见性.

You can use isVisible from QWidget because QDialog basically inherits QWidget. So you should be able to check the visibility.

myDialog = QtGui.QDialog()
isVis = myDialog.isVisible()

有关更多详细信息， http://www.riverbankcomputing .co.uk/static/Docs/PyQt4/html/qwidget.html#isVisible

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