#include "mainwindow.h"
#include <xcb/xcb.h>
#include <assert.h>
#include <QAbstractNativeEventFilter>
#include <QApplication>
#include <QDebug>

class NativeAppEventFilter : public QAbstractNativeEventFilter {

public:
	NativeAppEventFilter();
	virtual ~NativeAppEventFilter();

public:
	virtual bool nativeEventFilter(const QByteArray &eventType, void *m, long *);
};


NativeAppEventFilter::NativeAppEventFilter()
{
	QCoreApplication* app = QCoreApplication::instance();
	assert(app);

	if (app) {
		app -> installNativeEventFilter(this);
	}
}

NativeAppEventFilter::~NativeAppEventFilter()
{
}

bool NativeAppEventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *)
{
	bool filtered = false;

	if (message) {
		if (eventType == "xcb_generic_event_t") {
			const xcb_generic_event_t* xge = static_cast<const xcb_generic_event_t*>(message);
			uint8_t responseType = xge -> response_type & ~0x80;
			qDebug() << "Obtained response type: " << responseType;

			if (responseType == XCB_BUTTON_PRESS) {
				qDebug() << "Got a mouse button press!";
			}
		} else {
			assert(false);
		}
	}

	return filtered;
}

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	NativeAppEventFilter filter;
	MainWindow w;
	w.show();

	return a.exec();
}
#include "mainwindow.h"
#include <xcb/xcb.h>
#include <assert.h>
#include <QAbstractNativeEventFilter>
#include <QApplication>
#include <QDebug>

class NativeAppEventFilter : public QAbstractNativeEventFilter {

public:
	NativeAppEventFilter();
	virtual ~NativeAppEventFilter();

public:
	virtual bool nativeEventFilter(const QByteArray &eventType, void *m, long *);
};


NativeAppEventFilter::NativeAppEventFilter()
{
	QCoreApplication* app = QCoreApplication::instance();
	assert(app);

	if (app) {
		app -> installNativeEventFilter(this);
	}
}

NativeAppEventFilter::~NativeAppEventFilter()
{
}

bool NativeAppEventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *)
{
	bool filtered = false;

	if (message) {
		if (eventType == "xcb_generic_event_t") {
			const xcb_generic_event_t* xge = static_cast<const xcb_generic_event_t*>(message);
			uint8_t responseType = xge -> response_type & ~0x80;
			qDebug() << "Obtained response type: " << responseType;

			if (responseType == XCB_BUTTON_PRESS) {
				qDebug() << "Got a mouse button press!";
			}
		} else {
			assert(false);
		}
	}

	return filtered;
}

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	NativeAppEventFilter filter;
	MainWindow w;
	w.show();

	return a.exec();
}