Making QMouseEvent only triggered by MousePress and ignore move and release

I am using a function called InstallEventHandler which takes the name of the event and install handler to it

installEventHandler("QWidget", "QMouseEvent","mouse_event")

in which the QWidget is the type the the event handler is installed to, the QMouseEvent is the event that causes the handler to be called, and the mouse_event is the handler.

I want the function to be triggered when mouse is pressed only but I am encountered with a problem that the QMouseEvent is generated with mouse moves and releases too not only QMousePressEvent. Which make the fuction gets called thousands of times and misses my code.

I am trying since days to find a way and searching all the available methods but non is working.

Modify your method so it takes a 4th argument of QEvent::Type. For the case you describe above, that would be QEvent::MouseButtonPress. Inside your method, you check to see that pEvent->type() == QEvent::MouseButtonPress, and if it is, you call the event handler.

Code:

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installEventHandler( "QWidget", "QMouseEvent", QEvent::Type eventType, "mouse_event" );

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Alternatively, modify your event handler so it takes the QEvent pointer:

Code:

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void eventHandler( QWidget * sender, QEvent * pEvent );

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and inside your event handler you can choose to act only if the event type is MouseButtonPress.

I am not really sure why you are trying to reinvent this wheel. Qt already has the capability to install an event handler on any QObject. See QObject::installEventFilter().

The problem is that I don't have access to the function, it's created by "squish" and I am only using it.
I tried to use qt QObject::installEventFilter, but I am encountered with the problem that install event filter must take the object I want to Install the filter to.

While here it takes the type "QWidget" which is everything and install the filter to them even the dynamically created widgets during runtime.

I see. Is there a "squish" users forum? You might get more help there by people familiar with it.

What gets sent to your "mouse_event" callback function? If there is a pointer to the event itself, you can still use the event type to select out the ones you want.

Quote:

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Which make the function gets called thousands of times and misses my code.

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I do not know what you mean by "misses my code". The "mouse_event" function is something you have written, right?