Widget MouseHoverEvent Disable

alonewolfsemmmy

@mrjj my brother
SerialPort 5 megabit buadrate cpu Usage

mrjj

@alonewolfsemmmy

Ok so its not using 100% cpu so its not due to the hover disturbs it.

Does it happen every time if you hover something?

Do you use StyleSheets in your app ?

alonewolfsemmmy

@mrjj said in yes it happen every time if you hover something

I dont use stylesheets in my App

mrjj

@alonewolfsemmmy

Ok so its not due to the stylesheet which can be heavy.

And what happened when you disabled the button ?
It went grey looking and no hover effect ?

alonewolfsemmmy

@mrj MyBrother

When I disabled the button nothing has changed

mrjj

@alonewolfsemmmy
Not even the button ?
It should be disabled unless something in code turns it on again.

alonewolfsemmmy

Okay My brother So how can I disable the mouse thank you

mrjj

@alonewolfsemmmy ¨

Hi
you cannot disable the mouse as its belongs to the OS.

However you can hide it for your app

QCursor cursor(Qt::BlankCursor);
QApplication::setOverrideCursor(cursor);
QApplication::changeOverrideCursor(cursor);

alonewolfsemmmy

My Brother I want to hide mouse event Please help me thank you

mrjj

@alonewolfsemmmy
Well you can take an event using an event filter
https://doc.qt.io/qt-5/eventsandfilters.html

#include <QObject>
#include <QMouseEvent>
#include <QDebug>
#include <QCursor>

class myEventFilter: public QObject {
  Q_OBJECT
public:
  myEventFilter() {}
  ~myEventFilter() {
  }
protected:
  bool eventFilter(QObject* object, QEvent* event) {
    if(event->type() == QEvent::MouseMove) { // or what ever event you want
      return true;
    } else
      return false;
  }
};

and to use it
ui->thebutton->installEventFilter(new myEventFilter());