How do you get a widget's children in Qt?

I'm simulating keyPresses to an application through Qt's KeyPress function. All the KeyPresses work fine. However when I pass a QT::Key_Enter which is supposed to press the OK button of the currently active window, or QT::Key_Cancel for the cancel button, it does nothing.

I'm thinking maybe, because these buttons don't have the focus, and th开发者_C百科e parent window itself has it. How do you get the children of a window? or rather find the OK or Cancel button on it so you could set it as the activeWindow and then pass KeyPresses successfully?

I have:

QWidget *pWin = QApplication::activeWindow;
QObjectList *pList = pWin->children();
//how do you iterate through the list and find the OK or Cancel button?

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You can use the findChild() function with the object name to get a specific child.

You can also use findChildren() to get all the children that have the same name and then iterate through the list using foreach() or QListIterator.

To get a button you can try:

QPushButton* button = pWin->findChild<QPushButton*>("Button name");

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You might want to put a custom event filter on your widget to capture the key event and see what really happens to it.