QTextEdit Ctrl + + zoomIn keyevent not working in Windows

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QTextEdit Ctrl + + zoomIn keyevent ...

August 21, 2012

haney

Lab Rat
25 posts

Hi,

I developed an editor using QTextEdit. In this zoomIn option is working for Ctrl + ‘+’. But when I press Ctrl + Shift + ‘=’ keys zoomIn feature is not working.

In linux by default, Ctrl +Shift +’=’ is working. In windows it is not working.

Ctrl+Shift+= is same as Ctrl ++

I tried to capture the events in keypressEvent(QKeyEvent *e) method like this:

if(e->modifiers() == Qt::ControlModifier && e->key() == Qt::Key_Plus)
{
this->zoomIn();
qDebug()<<"key ctrl shift + pressed";
} // not working
// second trial
if(e->modifiers() == Qt::ControlModifier &&e->modifiers() == Qt::ShiftModifier && e->key() == Qt::Key_Equal)
{
this->zoomIn();
qDebug()<<"key ctrl shift + pressed";
} // not working

How can I make Ctrl+shift+’=’ make zoomIn in textEdit. How can I capture these keypresses combination.

Please suggest your views on this.

Appreciate your help in this regard.

Thanks,
Haney.

}

2 replies

August 21, 2012

haney

Lab Rat
25 posts

I tried even the nativeScanCode() each key has a unique scan code. I cannot differentiate = and + using scan code cuz it is one key, hence same scancode.

How to catch the combination of key press like Ctrl + Shift + ‘=’ .

Please give any suggestions.

August 22, 2012

haney

Lab Rat
25 posts

I was able to do it this way.

Qt::KeyboardModifiers mod = QApplication::keyboardModifiers ();
bool SHIFT = mod.testFlag(Qt::ShiftModifier);
bool CTRL = mod.testFlag(Qt::ControlModifier);
if (SHIFT && CTRL)
{
if(e->key() == Qt::Key_Plus){
qDebug()<<"now plus caught";
this->zoomIn();
}

‹‹ insert table Qt3D / plugin "mouse3d" ››

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August 21, 2012