transfer screen x,y coordinate to another machine

[saman_artorious]

There are two systems, when screen is clicked on the first one, x & y coordinates shall be transfered to the second machine via socket.
The monitor sizes and resolutions may differ. Is there any way to get the exact coordinate on the other machine?

[Santosh Reddy]

Is there any way to get the exact coordinate on the other machine?

When the monitor sizes and resolutions can differ, you cannot rely on the exact coordinate, you should convert the coordinates in to relative (say % of width, % of height) cooridinates and then sedn them across to other machine.

On source machine

QMouseEvent * event;
 
QPoint point = event->globalPos();
QSize size = qApp->desktop()->screen()->size();
point.setX(100 * point.x() / size.width());
point.setY(100 * point.y() / size.height());
 
// send point

QMouseEvent * event;

QPoint point = event->globalPos();
QSize size = qApp->desktop()->screen()->size();
point.setX(100 * point.x() / size.width());
point.setY(100 * point.y() / size.height());

// send point

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On destination machine

QPoint point;
// receive point
 
QSize size = qApp->desktop()->screen()->size();
point.setX(size.width() * point.x() / 100);
point.setY(size.height() * point.y() / 100);
 
//use the point

QPoint point;
// receive point

QSize size = qApp->desktop()->screen()->size();
point.setX(size.width() * point.x() / 100);
point.setY(size.height() * point.y() / 100);

//use the point

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[saman_artorious]

When the monitor sizes and resolutions can differ, you cannot rely on the exact coordinate
, you should convert the coordinates in to relative (say % of width, % of height) cooridinates and then sedn them across to other machine.

my is different, I have a QGLWidget inside main window. I need to transfer the coordinates of x & y within this gl widget.
whatever the resolution and screen might be, is the QGLWidget have the same size, we will always get the same coordinates in both using event.x and event.y wouldn't we?

On source machine

QMouseEvent * event;
QPoint point = event->globalPos();
QSize size = qApp->desktop()->screen()->size();
point.setX(100 * point.x() / size.width());
point.setY(100 * point.y() / size.height());
 
// send point

QMouseEvent * event;
QPoint point = event->globalPos();
QSize size = qApp->desktop()->screen()->size();
point.setX(100 * point.x() / size.width());
point.setY(100 * point.y() / size.height());

// send point

To copy to clipboard, switch view to plain text mode