Widget MouseHoverEvent Disable

[JonB]

@alonewolfsemmmy
No, you need to do some reading of the documentation, try some things, and write questions which people can understand, even if English is not your native language.

[mrjj]

Hi
This function
https://doc.qt.io/qt-5/qwidget.html#enabled-prop

[alonewolfsemmmy]

@mrjj please I didn't you said Please tell me example thank you my friend

[mrjj]

hi
Its very helpful to be able to use the docs.
anyway, try
ui->buttoname->setEnabled(false);

the button should show a bit grey and no hover effect.

[alonewolfsemmmy]

@mrjj
You said didn't work I want to widget on mousehover disable effect widget
All Right Have you advice CRC-32/MPEG-2 calculate function because When I move on widget form Crc 32 calculate error What Can I fixed

[mrjj]

@alonewolfsemmmy
Hi
That is hard to guess on as why would a hover eefct break the CRC calculation in first place ?

Did you watch your cpu usage ? is it at 100% ?

[alonewolfsemmmy]

Okay my brother I will try you said cpu usage

[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());