How can I simulate user interaction (key press event) in Qt?

Question

I need to simulate "Enter" key event in Qt. How can I do this?

score 27 · Answer 1 · edited Mar 06 '14 at 20:39

27

The correct answer might be this:

QKeyEvent *event = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Enter, Qt::NoModifier);
QCoreApplication::postEvent (receiver, event);

in fact there are no matching function for call to

QtKeyEvent::QtKeyEvent(Type type, int key)

but there is:

QtKeyEvent::QtKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers)

edited Mar 06 '14 at 20:39

phyatt

answered Jan 23 '12 at 15:10

dnlcrl

3

Should be Qt::NoModifier not Qt::NoModifiers. – Therefore May 04 '13 at 20:56
2

It's important to simulate a KeyPress followed by a KeyReleased because there are objects that process something when the key is released. An example is a QWebView running a JavaScript that handles keyUp events. They won't be generated unless you post a KeyRelease event. – Fappaz Sep 16 '14 at 21:57
You can also use `shareEvent` if you'd rather the `QKeyEvent` be allocated on the stack. – Kyle Strand Aug 26 '16 at 01:15

score 23 · Answer 2 · answered Jan 10 '10 at 00:26

23

QKeyEvent *event = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Enter);
QCoreApplication::postEvent (receiver, event)

answered Jan 10 '10 at 00:26

PiedPiper

2 Answers2