xgetmouse
xgetmouse —  get the mouse events and current position   
Calling sequence
rep=xgetmouse([flag], [sel])  
Parameters
| flag   | : integer. If present, the mouse click event queue is not cleared when entering  xgetmouse. | 
| sel   | : boolean vector [getmotion, getrelease]. default
  value is [%t, %f] | 
| rep   | : vector of size 3, [x,y,ibutton]. | 
Description
    If the mouse pointer is located in the current graphics window, xgetmouse returns
    in rep the current pointer position (x,y) and the value ibutton.
     
    The ibutton value indicates the event type:
  
| - | if ibutton is -1 then a mouse motion'  was
  got (if getmotion has been set to %t) . | 
| - | if ibutton is -5 -4 or -2 then left , middle or right button'
    was released (if getrelease has been set to %t). | 
| - | if ibutton is 0, 1 or 2, then the left,
    middle or right button'> was pressed.  If the mouse is not located
    in the current graphics window, xgetmouse
    waits. Moreover, xgetmouse works in a synchonous way, i.e. waits
    for a mouse event (click or pointer movement) to occur before
    exiting. | 
Examples
xselect(); xbasc(); xsetech([0 0 1 1],[0 0 100 100])
xset("alufunction",6)
xtitle(" drawing a rectangle ")
[b,x0,y0]=xclick(); rep=[x0,y0,-1]; x=x0; y=y0;
xrect(x0,y0,x-x0,y-y0)
while rep(3)==-1 then
    rep=xgetmouse(0)
    xrect(x0,y0,x-x0,y0-y)
    x=rep(1); y=rep(2);
    xrect(x0,y0,x-x0,y0-y)
end
xset("alufunction",3)
 
  See also
locate, xclick