Qt MousePressEvent on QTableWidget project

[citix]

I want to use MousePressEvent but I dont know how I need to create the files...(main.cpp, ProjectQt.cpp,ProjectQt.h)

Anyone help me to run MousePressEvent on a QTableWidget application. for example I found the event method but I dont know how I can run the method.

void mousePressEvent ( QMouseEvent * event ){
		if(event->button() == Qt::LeftButton){
 
		} 
}

void mousePressEvent ( QMouseEvent * event ){
		if(event->button() == Qt::LeftButton){

		} 
}

To copy to clipboard, switch view to plain text mode 

Anyone help me?