How to check the key(alt, ctrl, shift) is pressed in Callback functions?<br>public void KeyDown(vtkObject caller, uint eventId, object clientData, IntPtr callData)<br>{<br><div style="margin-left: 40px;">//What the key was pressed?<br>
</div>}<br clear="all"><br>-- <br>С Уважением,<br>Андрей.<br>Best regards, Andrew<br>