Source code

<plugin .... onclick="switch(control.mousetype, drag2D, moveto);" />

Source code

<!-- the 'qtvrcursor' action will be called at start to set the qtvr cursor -->
<events onxmlcomplete="action(qtvrcursor);" />

<!-- the two buttons, one for drag mode one for the moveto mode, one is visible, the other invisible 
then clicked the actions for changing the cursors and control mode will be called
-->
<plugin name="dragmode" ... onclick="action(dragcursor);" visible="true"  />
<plugin name="movemode" ... onclick="action(qtvrcursor);" visible="false" />

<!-- the action to change the mouse cursor image and the control mode -->
<action name="dragcursor">
  set(plugin[dragmode].visible, false);
  set(plugin[movemode].visible, true);
  set(control.mousetype, drag2D);
  set(cursors.url, %CURRENTXML%/drag-cursors.png);
  set(cursors.type, drag);
  set(cursors.move,  2|0|30|32); 
  set(cursors.drag, 37|0|30|32);
</action>

<action name="qtvrcursor">
  set(plugin[dragmode].visible, true);
  set(plugin[movemode].visible, false);
  set(control.mousetype, moveto);
  set(cursors.url, %CURRENTXML%/qtvr-cursors.png);
  set(cursors.type, 8way);
  set(cursors.move,       0|0|16|16);
  set(cursors.drag,      16|0|16|16);
  set(cursors.arrow_u,   32|0|16|16);
  set(cursors.arrow_d,   48|0|16|16);
  set(cursors.arrow_l,   64|0|16|16);
  set(cursors.arrow_r,   80|0|16|16);
  set(cursors.arrow_lu,  96|0|16|16);
  set(cursors.arrow_ru, 112|0|16|16);
  set(cursors.arrow_rd, 128|0|16|16);
  set(cursors.arrow_ld, 144|0|16|16);
</action>